This nifty keychain has an authentic SeatBelt Buckle clasp. You can anchor it to a belt loop or bag with two stainless steel snaps, and then conveniently detach your keys by pressing the center button. The keychain measures 3.0x1.0x0.5 Inches, and is made from nylon and stainless steel. This product is Officially Licensed by Adventure Time and Made in USA by Harry Potter and Made in USA by Buckle-Down Inc.