Size: 98 x 65 x40 mm, Material: stainless steel body, copper keys No drilling: no need to drill the holes, before installation, use the hex key to loosen the screws./ Four-layer steel plate: The four-layer steel plate is combined with a ring lock, which is more complicated and stronger. Compared with a single thin ring lock, it is more convenient and stronger. Wide Application: These locks are perfect for family home, flat door, office door and hall applications hotel bath. Tips: This lock is suitable for frameless glass doors and 8~12mm thick tempered glass doors. Material: stainless steel body, copper keys Size: approx. 9.8*6.5cm/3.9*2.6inch Package Included: 2*Glass Door Locks 3* copper keys