This window safety lock is made of premium aluminum alloy material for durable and practical use. Designed to instantly secure sliding doors and windows without drilling holes, it helps prevent forced entry from the outside, enhancing home and family safety. Easy to disassemble and reuse. Features Color: Assorted colors Material: Aluminum alloy Size: Approximately 6.00 x 3.50 x 2.30 cm / 2.36 x 1.38 x 0.90 inches Constructed from strong and durable aluminum alloy with anti-scratch and anti-wear finish for performance Simple operation: Place on the window or door track and secure by adjusting the locking part Helps prevent unauthorized access and children from opening windows unsafely, while allowing controlled ventilation No-drill installation: Easy to install and remove without tools or permanent modifications Ideal for sliding windows, providing added security and peace of mind Package List 3 x Window Safety Locks