---
product_id: 505614186
title: "Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair"
brand: "fitvids"
price: "¥46726"
currency: JPY
in_stock: false
reviews_count: 10
url: https://www.desertcart.jp/products/505614186-fitvids-upgraded-adjustable-jammer-arms-lever-arms-monolift-attachments-rated
store_origin: JP
region: Japan
---

# Durable black powder-coated 11-gauge steel Fits all 3"x3" racks & 5/8"+ holes 600 LB load capacity per arm Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair

**Brand:** fitvids
**Price:** ¥46726
**Availability:** ❌ Out of Stock

## Summary

> 💪 Elevate your rack game—power, precision, and versatility in one sleek upgrade!

## Quick Answers

- **What is this?** Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair by fitvids
- **How much does it cost?** ¥46726 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/505614186-fitvids-upgraded-adjustable-jammer-arms-lever-arms-monolift-attachments-rated)

## Best For

- fitvids enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from rugged 11-gauge powder-coated steel for maximum durability and sleek style
- • **Heavy-Duty Strength:** Supports up to 600 lbs per arm for serious lifting power
- • **Space & Cost Efficient:** Replace bulky, costly belt squat machines with this compact, affordable pair
- • **Universal Compatibility:** Seamlessly fits all standard 3"x3" squat racks with 5/8"+ hole diameters
- • **Versatile Workout Expansion:** Unlocks belt squats, curls, rows, and guided deadlifts—ditch expensive machines

## Overview

The Fitvids Upgraded Adjustable Jammer Arms are premium lever arms designed to fit all standard 3"x3" squat racks with hole sizes 5/8" and above. Rated to hold 600 lbs per arm, these black powder-coated 11-gauge steel attachments enable a variety of exercises including belt squats, curls, rows, and guided deadlifts. They offer a durable, cost-effective alternative to expensive belt squat machines, enhancing your home or commercial gym setup with versatile, heavy-duty performance.

## Description

Fitvids Belt Squat Lever Arm Plate Loaded Gym Fitness Equipment Curls Rows Guided Deadlifts Black

Review: Belt Squats for the win - For the price it works great, I didnt even attach it to a rack, it's hanging off a plate tree and its awesome.
Review: Very sturdy and great value for the money - This product is heavy duty welded metal. There is no way this thing will ever break. Opening is 3-1/8 inches. My power rack is a PowerTec rack, and the rack has 2-3/8 inches by 2-3/8 posts. This fits just fine. The lever arm works just fine, but if your rack is less than 3x3 you may want some sort of washer or bushing to keep it from moving (though it works fine without any modifications). I don’t use bumper plates, but if you do then you won’t be able to load much weight on there. But if you use old school iron plates - or especially if you use calibrated plates - you will be able to load a good amount of weight. The sleeve is 11 inches long. To give you a sense of it, I can load 7 of my 45 pound plates (with no room to spare) or 5 100 pound plates (with about an inch to spare).

## Features

- Fits 3" x 3" squat racks, with rack hole diameters of 5/8" or larger
- Allows user to perform multiple additional exercises such as Belt Squats, Curls, Rows, or Guided Deadlifts
- Replaces belt squat machines that can run up to multiple thousands of dollars
- Built from black powder coated 11-gauge steel for maximum durability
- Weight horn length: 9.8"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BP1X1Y7F |
| Best Sellers Rank | #89,826 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #270 in Strength Training Equipment Attachments #337 in Weight Lifting Belts |
| Brand | Fitvids |
| Brand Name | Fitvids |
| Closure Type | Buckle |
| Color | Black |
| Customer Reviews | 4.0 out of 5 stars 191 Reviews |
| Item Dimensions L x W | 30.7"L x 3.1"W |
| Manufacturer | Signature Fitness |
| Material | Stainless Steel, Powder Coated Steel |
| Model Number | SF-LEVER1 |
| Part Number | SF-LEVER1 |
| Product Dimensions | 30.7"L x 3.1"W |
| Size | One Size |
| UPC | 810133186072 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fitvids
- **Color:** Black
- **Handle Type:** Fixed, Steel
- **Included Components:** Dip Bars
- **Material:** Alloy Steel

## Images

![Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair - Image 1](https://m.media-amazon.com/images/I/61yZM4X1FyL.jpg)
![Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair - Image 2](https://m.media-amazon.com/images/I/61F7oz3i7VL.jpg)
![Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair - Image 3](https://m.media-amazon.com/images/I/61rixIT-L4L.jpg)
![Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair - Image 4](https://m.media-amazon.com/images/I/61KmpG94JNL.jpg)
![Fitvids Upgraded Adjustable Jammer Arms, Lever Arms, Monolift Attachments Rated 600 LB Per Arm, Fits Racks at All Post Sizes and Hole Sizes, Pair - Image 5](https://m.media-amazon.com/images/I/71deE2z7VEL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Belt Squats for the win
*by M***Y on August 14, 2026*

For the price it works great, I didnt even attach it to a rack, it's hanging off a plate tree and its awesome.

### ⭐⭐⭐⭐⭐ Very sturdy and great value for the money
*by A***X on May 29, 2023*

This product is heavy duty welded metal. There is no way this thing will ever break. Opening is 3-1/8 inches. My power rack is a PowerTec rack, and the rack has 2-3/8 inches by 2-3/8 posts. This fits just fine. The lever arm works just fine, but if your rack is less than 3x3 you may want some sort of washer or bushing to keep it from moving (though it works fine without any modifications). I don’t use bumper plates, but if you do then you won’t be able to load much weight on there. But if you use old school iron plates - or especially if you use calibrated plates - you will be able to load a good amount of weight. The sleeve is 11 inches long. To give you a sense of it, I can load 7 of my 45 pound plates (with no room to spare) or 5 100 pound plates (with about an inch to spare).

### ⭐⭐⭐⭐ Good product, could use something to protect equipment from damage
*by S***. on August 9, 2025*

This attachment is great. Super durable, nice dark steel and easy to use. My only con is that it is damaging my equipment because there is no rubber or protective covering on the edge where it connects with my weight stand.

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**Shop now:** [https://www.desertcart.jp/products/505614186-fitvids-upgraded-adjustable-jammer-arms-lever-arms-monolift-attachments-rated](https://www.desertcart.jp/products/505614186-fitvids-upgraded-adjustable-jammer-arms-lever-arms-monolift-attachments-rated)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-03*