Product Specifications: This set includes 4 window restrictors in a compact design. Each restrictor is made of high-quality material and equipped with a steel cable measuring 19 cm in length. The product features a smooth line design and a white exterior as shown in the image. Self-drilling screws and keys are included for installation and unlocking.

Core Functions: The restrictor is designed to limit how far a window or door can be opened while still allowing ventilation. When the cable is secured in place, the opening distance is restricted for increased home and child safety. With the help of the key, the cable can be released from one end, allowing the window to be fully opened. The cable structure is built to withstand higher pressure and is not easily damaged, while the lock core design helps to improve security in daily use.

Suitable Scenarios: Suitable for use on PVC, aluminum, wood, and composite doors and windows. It can be applied to double-hung, pivot, and sliding windows, as well as balcony doors and guest room doors. This type of restrictor is suitable for households that want controlled ventilation and an extra safety measure for windows and doors.

Product Summary: A practical 4-piece window restrictor set with a key lock design, steel cable, and wide compatibility for various window and door types. It combines limited opening control, easy installation, and daily safety support in a compact solution.