Product Parameters
Set of 4 window restrictors in white. Made from high-quality material with a steel cable design and a smooth, flexible cord. The cable measures 19 cm in length, with a usable restriction distance of up to 18.5 cm. The package includes self-tapping screws and keys for installation and unlocking.

Core Features
This window restrictor is designed to enhance home security by limiting how far a window or door can be opened while still allowing ventilation. Once the cable is fixed in place, the opening distance remains restricted. With the included key, the cable can be released from one end, allowing the window to be fully opened. The lock core design helps to improve the security performance of the lock.

Suitable Scenarios
Suitable for PVC, aluminum, wood, and composite doors and windows. Can be used on double-hung windows, casement windows, sliding windows, balcony doors, and guest room doors. Intended for home environments where extra child safety and controlled window opening are needed.

Product Summary
This 4-piece white window restrictor set combines a flexible cable structure, key release design, and broad material compatibility. It offers a practical way to limit the opening distance of windows or doors while supporting daily household safety.