Easily attach and detach items from your keychain, bag, purse, and other everyday items. Just slide the two halves apart to connect and disconnect. The dovetail joint locks the two pieces together so they cannot be pulled apart, and the magnets prevent unintentional or accidental separation. Ultra-durable design holds up to 20lbs. Easy To Use Quickly attach and detach items from keys. Works with KeySmart, keychains, bags, and more. Great for car fobs, pepper spray, or a second set of keys. Secure & Reliable The Locking Feature Provides Additional Protection From Accidental Separation Strong Magnets & Ultra Durable Design Magnets keep the two halves together while connected to prevent accidental separation. Ultra-durable design holds up to 20lbs.