UCEC Aluminum Daily Carry Carabiner Pillbox Keychain with Waterproof Pill Box Screw LockingxFF08;3 PcsxFF09; Anti lost thread lock, convenient, practical and wide application. Material: high hardness aluminum alloy. Adopt polishing process, durable and wear-resistant. Dimension: Approx. 8 x 4.2cm/3.1 x 1.7". Suitable for hanging on the bag, key rings, bottle, connecting tent and ropes, etc.