Durable material: The 22 mm diameter letterbox lock is hard-wearing, highly durable and can be used for a long time.
Includes 2 keys: The lock comes with two keys so you always have one behind you.
For parcel drop box

Specifications
Diameter mounting hole (mm) 22 mm
Number of keys 2 ( included )
Colour unit Black
Depth unit 17.4 mm
Weight unit 93 g