--- product_id: 82880266 title: "Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition))" brand: "doorjammer" price: "¥19220" currency: JPY in_stock: true category: "Door Jammer" url: https://www.desertcart.jp/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection store_origin: JP region: Japan --- # Commercial-grade for offices & schools Tool-free quick setup & release 192mm XL heavy-duty height Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) **Brand:** doorjammer **Price:** ¥19220 **Availability:** ✅ In Stock ## Summary > 🚪 Lock it down like a pro—because your safety deserves the XL treatment! ## Quick Answers - **What is this?** Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) by doorjammer - **How much does it cost?** ¥19220 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/82880266-portable-door-lock-brace-for-home-security-and-personal-protection) ## Best For - doorjammer enthusiasts ## Why This Product - Trusted doorjammer brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Security:** Install or remove in seconds—no tools needed—perfect for fast emergency lockdowns. - • **Versatile Floor Grip:** Innovative hinge system anchors firmly on carpet, tile, or laminate floors, adapting to any environment. - • **Portable Peace of Mind:** Lightweight 1.8 lbs design means you can secure your space anywhere, anytime. - • **XL Industrial Strength:** At 192mm tall, Lockdown XL delivers unmatched barricade power for inswinging doors with just 3mm clearance. - • **Commercial-Grade Confidence:** Trusted in schools, offices, hotels—engineered for professional-grade personal protection. ## Overview The DoorJammer Lockdown (XL Edition) is a portable, industrial-strength door security brace designed exclusively for inswinging doors with a 3mm gap. Standing at 192mm tall, it provides heavy-duty barricading power without tools, featuring a quick-release mechanism for emergency removal. Engineered for commercial use, it securely anchors to all floor types—carpet, tile, or laminate—making it ideal for homes, offices, schools, and hotels seeking fast, reliable personal protection. ## Description Buy DoorJammer Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)): Door Stops - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - ONLY FOR INSWINGING DOORS WITH 3MM CLEARANCE - This portable, industrial strength door security device prevents unwanted entry. It takes just moments to fit in the gap under an inswinging door without needing tools and uses displacement of force to barricade the door against an attempt at forced entry. - TRIED & TESTED - At twice the size (a height of 192mm), Lockdown is the heavy-duty big brother of award-winning original travel safety device DoorJammer. - DESIGNED FOR COMMERCIAL USE - Created for emergency deployment in public buildings, schools, offices or hotels, this is the last word in portable stopping power. - QUICK SETUP & RELEASE - Takes only seconds to install and remove. No tools are required to implement this revolutionary home security device. In case of emergency, the quick-release easily removes the Lockdown with an upward motion. - HIGHLY VERSATILE - Compatible with all types of flooring, the innovative system of hinges and angles anchor the Lockdown firmly to carpeted, tiled and laminate floors when outside pressure is exerted on the door. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HM9HVN4 | | Best Sellers Rank | #26,225 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Door Closers | | Brand Name | DoorJammer | | Color | DJ4LD - DoorJammer Lockdown (Heavyweight) | | Customer Reviews | 4.2 4.2 out of 5 stars (989) | | Global Trade Identification Number | 00814953024118 | | Item Weight | 1.8 Pounds | | Manufacturer | DoorJammer | | Manufacturer Part Number | DJ-Parent | | Manufacturer Warranty Description | Manufacturers Warranty | | Material Type | Alloy Steel | | Model Number | DJ4LD | | Mount Type | Floor Mount | | Number of Pieces | 1 | | Product Style | DJ4LD - Lockdown (XL Version) | | UPC | 814953024118 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** DoorJammer - **Color:** DJ4LD - DoorJammer Lockdown (Heavyweight) - **Global Trade Identification Number:** 00814953024118 - **Manufacturer:** DoorJammer - **Material:** Alloy Steel - **Mounting Type:** Floor Mount - **Number of Pieces:** 1 - **Style:** DJ4LD - Lockdown (XL Version) - **UPC:** 814953024118 - **Unit Count:** 1.0 Count ## Images ![Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Image 1](https://m.media-amazon.com/images/I/71vZeb8GlOL.jpg) ## Available Options This product comes in different **Size, Set** options. ## Questions & Answers **Q: How can I ensure that the DoorJammer DJ4 Lockdown will fit my door?** A: To ensure a proper fit, measure the gap between the bottom of your door and the floor. The clearance must be at least 0.25 inches (1/4”) and no more than 1.5 inches. The DoorJammer DJ3 is designed for inswing doors with a minimum of 3mm clearance. **Q: Can DoorJammer DJ4 secure all door types?** A: It’s designed specifically for inswinging doors with a minimum 3mm clearance from the floor. **Q: Can I use DoorJammer DJ3 on all floor types? Will this work on carpet, tile, or wood floors?** A: Yes, its engineered base grips all flooring types, including carpet, tile, laminate, and hardwood. **Q: Is DoorJammer DJ4 easy to install and remove?** A: Installation takes just seconds—simply slide it under the door and secure. No tools or hardware are needed. **Q: Is this suitable for emergency lockdown situations?** A: Yes, it was originally designed for rapid deployment in schools, offices, and public buildings during lockdowns. ## Frequently Bought Together - DoorJammer Portable Door Lock Brace for Home Security and Personal Protection (DJ4LD – Lockdown (XL Edition)) - Strongest Home Strongest Door Stopper - Zinc & Rubber Decorative Door stop. Suits Any Door & Any Floor. Door wedge Stop that is Non-Rust. Black & Silver. Set of 2 + Self-Adhesive Wall Protector - Original Trustella Heavy-Duty Portable Door Lock - Stainless Steel Security Device for Enhanced Safety - Ideal for Home, Travel, Hotels, Apartments - Silicone Protector Caps Included (1, Black) --- ## 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/82880266-portable-door-lock-brace-for-home-security-and-personal-protection](https://www.desertcart.jp/products/82880266-portable-door-lock-brace-for-home-security-and-personal-protection) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-06*