LOCK ONLY FOR GLASS DOOR. Special arc inclined plane design, safe performance, fit for 10-12mm thickness frameless double swing or sliding toughened glass door. HIGH QUALITY STAINLESS STEEL . Double bolt glass door lock, silver, high quality construction, package with 3 silver tone metal keys and several installing accessories. EASY TO INSTALL AND REMOVE ,Can be internal or external control, the two sides all can be locked, inside locked use Knob, outside locked use key. PERFECT for family house, flat gate, office door, parlour, saloon entrance gate, etc Colour:Silver Material:Stainless steel Package Contents: 1 x Office Glass Door Lock 3 x 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.