Floating key chains are made of buoyant foam which has excellent suspension and floatation ability. Floating key chains help ensure that your keys will not sink in a water hole, pond, or lake. Whether fishing, swimming, boating or just walking or hiking, our custom floating keychains will help keep your keys safe. YMMV and this product will work best with one or two keys. Overloaded keychains can still sink. BPS has unique shapes, patterns, and colors to fit your customized keychain needs. Choose a floater keychain to show your personality and thoughtfulness!