The frameless glass door lock set comes with 3 keys, made of high quality 304 stainless steel, solid copper inner core, durable and rust resistant Suitable for double vent tempered glass open doors with 10-12mm thickness for the door, and the gaps between the doors should be 6-10mm. Advanced polishing process with sanding finish Easy installation, no need to drill holes for the door, comes with Allen key mounting screws Easy operation, stable, safe and reliable