This product is a sliding glass door child lock, which is made of durable rubber and aluminum alloy material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your sliding window. It is a very practical accessory that will meet your needs well. Features - Color: Black -Material:aluminum alloy, rubber - Size: 6.70X4.00X3.00cm/2.63X1.57X1.18in Suitable window/door slide thickness: 0-1.6cm Suitable track thickness: 1mm-16mm (inner clamping)/13mm-28mm(outer supporting) - Prevent children from opening the window too large and cause , and it can also prevent children from opening the sliding door and flipping things around. - Soft silicone pads on both feet, allowing the lock to fix into the window track without damaging it. - Thickened aluminum alloy material, durable, suitable for all kinds of sliding windows and doors, effectively preventing accidents caused by children and unintentional opening of windows in strong winds. - Fix window or door, prevent children from opening window randomly, prevent , safe and stable. - Every detail is carefully crafted, experience the high durability and practicality. Package list: 1 x sliding door lock