Bottom snaps out to form a watertight storage compartment for a license or identification. Red top - white bottom. Key float is 4 inches long and 1-1/4-inch diameter. 6-inch rustproof nickel-plated brass ball chain. 1 per card. WARNING: This product can expose you to chemicals such as Phthalates which are known to the State of California to cause cancer andor birth defects or reproductive harm. For more information go to www.P65Warnings.ca.gov -