[Universal Fit for Glass Doors] Designed to fit most sliding glass doors, this ratchet lock features an inner diameter of 0.47" (12mm) and is compatible with glass thicknesses between 0.15"-0.3" (4-8mm), making it ideal for standard display cases and glass cabinets. [ Zinc Alloy with Chrome Finish] Crafted from high-quality zinc alloy and finished in sleek chrome, this lock is built to resist rust and while offering long-lasting durability in both residential and commercial environments. [Quick & Tool-Free Installation] No drilling or special tools required. the lock onto the edge of the glass and tighten-installation takes just minutes with a standard screwdriver, saving you time and hassle. [Keyed Alike for Convenience] All locks are keyed alike, allowing you to unlock multiple glass cases with one key. This is especially convenient for retail settings or collectors managing multiple display cabinets. [Secure & Versatile Usage] Perfect for securing sliding glass doors on retail showcases, home curio cabinets, office displays, and more. Offers peace of mind by protecting your valuables from unauthorized access. Color: Silver Material: Zinc Alloy Package Contents: 2*sliding lock with key Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.