---
product_id: 393368417
title: "Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges"
brand: "mass dynamic"
price: "¥15297"
currency: JPY
in_stock: true
reviews_count: 8
category: "Mass Dynamic"
url: https://www.desertcart.jp/products/393368417-square-toilet-seat-with-soft-close-top-fix-toilet-seats
store_origin: JP
region: Japan
---

# Noise-free soft close Top-fix adjustable hinges One-button quick release cleaning Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges

**Brand:** mass dynamic
**Price:** ¥15297
**Availability:** ✅ In Stock

## Summary

> 🚽 Elevate your bathroom game with silent luxury and effortless hygiene!

## Quick Answers

- **What is this?** Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges by mass dynamic
- **How much does it cost?** ¥15297 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/393368417-square-toilet-seat-with-soft-close-top-fix-toilet-seats)

## Best For

- mass dynamic enthusiasts

## Why This Product

- Trusted mass dynamic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Secure, Slip-Free Fit:** Four non-slip dampers ensure your seat stays perfectly in place—sturdy and stable.
- • **Effortless Hygiene Boost:** One-button quick release lets you deep clean in seconds, keeping germs at bay.
- • **Whisper-Quiet Soft Close:** No more disruptive slams—perfect for late-night peace.
- • **Durable & Lightweight Design:** High-quality plastic resists fading and flexes for long-lasting comfort and style.
- • **Universal Square Compatibility:** Designed to fit most UK square pans with easy top-fix installation—no more awkward under-pan fiddling.

## Overview

The Mass Dynamic Square Toilet Seat combines a noise-free soft close mechanism with a one-button quick release system for superior hygiene. Designed for easy top-fix installation on most UK square pans, it features adjustable hinges and four non-slip dampers for a secure, stable fit. Crafted from durable, lightweight plastic, this seat offers long-lasting comfort and style while minimizing bacteria growth.

## Description

Shop Mass Dynamic Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges. Free delivery on eligible orders of £20 or more.

Review: Terrific Toilet Seat - Took ages to find a square toilet seat that would fit our RAK Ceramic Toilet. didn't know if it would be the right shape but took a chance and so glad I did. Perfect size shape and super build quality. The soft close action is a bonus and works for both the seat and the lid...no more waking the family in the middle of the night. Comes with comprehensive instructions and 2 sets of installation screws that work with both normal and close coupled toilet basins. HIGHLY recommend this product
Review: Overall ok - plastic seat doesn't feel very sturdy, pads don't sit flat to toilet. - First impressions - It doesn't feel as sturdy as my old toilet seat, it's just normal plastic and feels less hard wearing - The top fitting connectors were so simple to install. A massive upgrade from my old underneath fittings which required me to reach under and around to tighten them - There are 4 underneath pads on the seat and the front 2 sit flat to the toilet rim but the back 2 are slightly raised and don't touch the toilet. This could potentially be a problem in future with the seat cracking with the constant use and pressing down on it * - The soft close fitting are what you'd expect. Silent, but slow. Overall ok, some concerns about the plastic quality and the pads not sitting flat to the seat but first few uses have been fine. It has only been used for just a few hours at the time of writing this review so I may come back and update this in a few months. * I used my old toilet seat pads to help with this by trimming down the old pad and then using some bathroom silicone to glue the old pad to the new to create a thicker pad. The back ones now sit flat to the seat but the front ones are marginally higher. It has taken the pressure off the back hinge which should reduce any potentially cracking but I think I will make the front ones slightly thicker using the old pads too so theyre level. I've added pictures to show the difference.

## Features

- Noise Free Soft Close: With this built-in mechanism, our square toilet seat closes down slowly. A little push and the lid come quietly and rest on the toilet seat. No more damage and banging noise, especially at night when you dont wanna disturb anyone's dreamq
- Easy to install & clean: Top fix toilet seat comes with hassle-free, simple 10-15 minutes installation for all Square-shaped pans. One button for quick removal for effective & easier cleaning assuring minimum bacteria growth
- Sturdy & Secure: With our provided toilet seat fittings; the toilet seat fits perfectly. With 4 integrated non-slip dampers under the seat, the seat does not move sideways once installed, making it sturdy
- Fits Most Square Shaped Pans: Our white toilet seat is perfectly suitable for UK standard square-shaped pan with top fixing hinges, making installation accesible from top. Donot have to get under the pan anymore
- Durable material: The toilet seat is made of high-quality plastic with the benefits such as soft, lightweight, flexible and no color fading surface. The product is set for a longer span of use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NVZS8JZ |
| Best Sellers Rank | 723 in DIY & Tools ( See Top 100 in DIY & Tools ) 7 in Toilet Seats |
| Brand | MASS DYNAMIC |
| Colour | White |
| Country of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 4,115 Reviews |
| Included Components | Toilet Seat and Fixing Accessories |
| Item Dimensions L x W | 43L x 36W centimetres |
| Item Type Name | Toilet Seats |
| Manufacturer | MASS DYNAMIC |
| Material | Plastic |
| Model Number | 1605PP |
| Operation Mode | Automatic |
| Product dimensions | 43L x 36W centimetres |
| Shape | Square |
| Style | Square Star |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** MASS DYNAMIC
- **Colour:** White
- **Manufacturer:** MASS DYNAMIC
- **Material:** Plastic
- **Product dimensions:** 43L x 36W centimetres
- **Shape:** Square
- **Style:** Square Star

## Images

![Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges - Image 1](https://m.media-amazon.com/images/I/412rhqdX+FL.jpg)

## Available Options

This product comes in different **Number Of Items, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Terrific Toilet Seat
*by T***E on 22 January 2026*

Took ages to find a square toilet seat that would fit our RAK Ceramic Toilet. didn't know if it would be the right shape but took a chance and so glad I did. Perfect size shape and super build quality. The soft close action is a bonus and works for both the seat and the lid...no more waking the family in the middle of the night. Comes with comprehensive instructions and 2 sets of installation screws that work with both normal and close coupled toilet basins. HIGHLY recommend this product

### ⭐⭐⭐⭐ Overall ok - plastic seat doesn't feel very sturdy, pads don't sit flat to toilet.
*by G***N on 4 December 2025*

First impressions - It doesn't feel as sturdy as my old toilet seat, it's just normal plastic and feels less hard wearing - The top fitting connectors were so simple to install. A massive upgrade from my old underneath fittings which required me to reach under and around to tighten them - There are 4 underneath pads on the seat and the front 2 sit flat to the toilet rim but the back 2 are slightly raised and don't touch the toilet. This could potentially be a problem in future with the seat cracking with the constant use and pressing down on it * - The soft close fitting are what you'd expect. Silent, but slow. Overall ok, some concerns about the plastic quality and the pads not sitting flat to the seat but first few uses have been fine. It has only been used for just a few hours at the time of writing this review so I may come back and update this in a few months. * I used my old toilet seat pads to help with this by trimming down the old pad and then using some bathroom silicone to glue the old pad to the new to create a thicker pad. The back ones now sit flat to the seat but the front ones are marginally higher. It has taken the pressure off the back hinge which should reduce any potentially cracking but I think I will make the front ones slightly thicker using the old pads too so theyre level. I've added pictures to show the difference.

### ⭐⭐⭐⭐⭐ Square toilet... no problem
*by A***N on 16 January 2026*

Perfect fit for square toilet. I fitted it quickly and easily, leaving the old anchorage (unseen beneath the bowl) fittings in situ. The new seat needed the supplied short bolts and hing base, then pop the seat on and adjust to fit. Hey presto, done ✔️

## Frequently Bought Together

- MASS DYNAMIC Square Toilet Seat with Soft Close Top Fix Toilet Seats with One Button Quick Release Cleaning for Better Hygiene, Rectangle Loo Seat with Adjustable Hinges
- Pipishell Toilet Seat with Soft-Close Mechanism, Quick Release Function for Easy Cleaning, O Shape White Toilet Seat with Adjustable Hinges, Plastic Version
- AQUALONA® Premium Thermoplastic D Shape Toilet Seat - Soft Close Hard-Wearing Seat with Two Button Hinge Release, D-Shaped - Comfortable, Easy to Clean and Install with Universal Fittings, White

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/393368417-square-toilet-seat-with-soft-close-top-fix-toilet-seats](https://www.desertcart.jp/products/393368417-square-toilet-seat-with-soft-close-top-fix-toilet-seats)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-03*