Keychain attachment provides a secure mount. You can take this little pill holder wherever you go and ully functional and very convenient to carry, suitable for hunting, fishing, camping, whatever you do. Perfect for travel, weighing just 1.4oz. Keychain can be clipped easily to key chains, handbags, golf bags, belt loops or used as a zipper pull for your coat or jacket. The container is watertight thanks to the rubber O-ring Seal makes the seal watertight and moisture resistant to keep medications safe. Aluminum construction makes this pill container virtually indestructible. This pill case works very well for carrying medication, vitamins, and supplements in travelling, fishing, and riding, camping. 5 pack - 1.9 x 0.7” provides enough storage space to fit almost any needs. With silicone sealing ring design, this pill holder is waterproof. The waterproof design can prevent the medication from getting damp.