Including: door lock, key, door ring, sealed delivery port) Size (CM): door lock length 2.4 cm width 0.9 cm The newspaper delivery port is about 2.5cm long The key is about 1.3 cm long The door knocker is about 1.5cm long weight (g): 10 Material: Alloy Package includes: 1Set(4pcs)** according to the pictures you choose