01DOOR HARDWARE
Quiet control for sliding windows
The grey restrictor sits quietly within the window track, a discreet presence that balances openness with security. It transforms a simple sliding pane into a controlled aperture, allowing light and air while managing how far the glass travels.
Designed for households where small hands meet large openings, this device limits the window’s range of motion. It suits families seeking peace of mind without altering the architectural integrity of their home.

DESIGN
Two modes for varied track depths
The unit accommodates different aluminium track thicknesses through two distinct installation configurations. This adaptability ensures a snug fit across various window profiles, preventing wobble or excessive gap. The grey finish blends seamlessly with standard hardware, maintaining visual harmony in the room.
OPERATION
Effortless twist to lock and release
A single rotation of the knob engages the locking mechanism, requiring no keys or complex tools. Releasing it is equally intuitive, allowing the window to slide freely again. This tactile simplicity makes daily operation effortless, suitable for users of all ages and dexterity levels.
MATERIALS
Durable hard plastic for longevity
Constructed from robust hard plastic, the restrictor withstands the friction of repeated use. Its wear-resistant nature ensures the mechanism remains smooth and responsive over time. The material choice prioritises durability without adding significant weight to the window assembly.
INSTALLATION
No drilling required for clean setup
Installation bypasses the need for drills, protecting the integrity of existing window frames. The compact size ensures the device does not obstruct normal sliding movement when unlocked. This non-invasive approach makes it ideal for rental properties or those wishing to preserve original finishes.
AT A GLANCE
The key points
- Hard plastic construction resists daily wear
- Twist knob locks and releases without tools
- No-drill installation preserves original frame
- Compact profile allows full slide when open
- Fits two track thicknesses for flexibility
About this product
- Designed for sliding aluminium windows, available in two installation modes to fit different track thickness requirements.
- Simple twist knob operation, easy to lock and release without complicated tools.
- Robust hard plastic construction, wear-resistant for long term daily use.
- Effectively limit window opening range, prevent accidental falling out, ideal for families with kids.
- No drilling required for installation, will not damage original window frames.
- Compact size, won’t block normal sliding of the window when unlocked










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