Multi-Functional Window and Door Lock Restrictor - Benefits and purpose: Designed to protect your home and baby by preventing the opening of sash and sliding doors. Suitable for inward and outward opening windows, down-opening wings, sliding doors and even tipping furniture. - Materials and design: Made of durable ABS plastic with adhesive and metal accessories. The locking buckle provides double protection, delivering both security and ventilation for your living space. - Safe and easy installation: Strong adhesive sticks securely to wings or doors without leaving marks. Easy to install and remove without causing damage to furniture or finishes. - Multipurpose compatibility: Compatible with various types of doors and sash including inward and outward opening sash, sliding doors and cabinets. Provides a versatile and reliable safety solution for your home. - Use scenarios: 1) Child safety at home: install on kitchen or bedroom windows to limit how far they can open. 2) Sliding doors and patios: secure patio or balcony doors to prevent accidental openings while still allowing ventilation. 3) Furniture safety: attach to cabinets or wardrobes to prevent tipping or unintended openings.