This lock is mainly made of brass, which has anti-corrosion and anti-rust properties. The lock is a mini type, which is convenient to carry around, and each lock has 3 keys, so you don't have to worry about losing one key and you won't be able to open the lock.Features- Color: Golden.- Material: Brass.- Size: 2.90X1.80X0.70 cm/ 1.14X0.71X0.28 inch.- The padlocks are made of brass, corrosion-resistant and rust-proof.- Each lock has three corresponding keys, which can protect the safety of your valuables.- The padlock is small and easy to carry when you go out.- Padlocks can be used for various occasions such as school bags, suitcases, diaries and cabinets.- The quality of the padlock is very good and it is not easy to be damaged, and can serve you for a long time.