Durable zinc alloy (with anodized surface) keep this keychain never rust. Carabiner length 49mm,width 23mm,thickness 5.5mm, Key Ring diameter 30mm. The rings are plain round steel and very strong. Never rust; even if putting it in the water or saline water. Good gift for father's day, graduation, bachelor party, corporate events, Christmas or someone special. These carabiner clip with key rings are good for your room key, car key. Also can hook Key Finder or other trinkets. The carabiner clip can be easy to connect keys, and they are durable. Specification Size: 3*7cm/1.2*2.8 inch Color: Sliver Material: Metal Features: 1. 100% brand new and high-quality Large-sized Detachable. 2. The lobster clasp has a strong spring-loaded snap gate. 3.Easy to use: Pull and hold the trigger to open. Release it and the clasp will automatically close. Package includes: 2 Pcs Metal Keyring