3-Pack Sliding Window Stopper Door Wedge Non-Slip Track Lock

3-Pack Heavy-Duty Sliding Window & Door Stoppers — Tool-Free Track Lock

Keep your windows and sliding doors exactly where you want them with this set of 3 honeycomb-reinforced engineering plastic window stoppers. Simply place them in the track — no drilling, no glue, no tools required — and instantly control how far your window or balcony door slides open. Perfect for homes, apartments, rental units, offices, bathrooms, and kitchens.

Made in Mainland China.

Why You'll Love These Window Stoppers

• Honeycomb Reinforced Structure: Lightweight yet exceptionally strong — the hollow honeycomb engineering plastic core provides high load-bearing capacity, resists strong wind impact, and holds its shape even after prolonged compression.
• Weather-Resistant & Anti-Aging Material: Integrally injection-moulded hard plastic is waterproof, dustproof, and UV-resistant. It won't fade or crack under long-term sun exposure, making it ideal for both indoor and outdoor use.
• Tool-Free Quick Installation: No drilling, no adhesive, no extra tools needed. Just slide it onto the window track, position it to your desired opening width, and you're done. Adjust or remove in seconds without scratching aluminium, PVC, or wood track surfaces.
• Rounded Burr-Free Safe Edges: Every edge is polished into a smooth arc — safe for hands during installation and guaranteed not to scratch window frame paint or plastic coatings.
• Multi-Scene Universal Fit: Standard sizing fits most aluminium alloy and PVC sliding windows and balcony sliding doors. Ideal for limiting window openings for child safety, deterring unauthorised entry, and eliminating window collision noise on windy days.

Specifications

• Material: High-toughness hard engineering plastic
• Quantity: 3 pieces per pack
• Application: Sliding windows, balcony sliding doors, rental apartments, home offices, bathrooms, kitchens
• Installation: No tools required — track-placement only
• Color & Size: As shown in product images

Note: Images are for display purposes only; please refer to the specification for exact size. Manual measurement may result in slight variations. Monitor settings may affect perceived colour.

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Frequently Asked Questions

Q: Will these window stoppers fit my aluminium sliding windows and balcony doors?

A: Yes! The standard-size honeycomb plastic window stoppers are designed to fit most aluminium alloy and PVC sliding windows and sliding balcony doors. They sit directly in the track without any drilling or adhesive, making them a universal solution for most common household track widths.

Q: How do I install or remove the sliding window stopper?

A: Installation is completely tool-free. Simply place the stopper into your window or door track at your preferred position to limit how far the window opens. To remove or reposition it, just lift it out. No glue, no screws, and no risk of damage to your window frame or track surface.

Q: Are these window stoppers safe for homes with children?

A: Absolutely. These stoppers are specifically designed with child safety in mind — they limit how far a window can slide open, helping to prevent accidental falls. All edges are smooth and burr-free, so there are no sharp corners that could cause scratches during handling or installation.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.