From Chums

The Floating Keychain fits over your wrist so you don't lose your keys while on the water. If you happen to go overboard and lose your keys the Floating Keychain will keep them on the surface. Easy to spot with its bright yellow foam and TPU construction, it will float 1 oz (28g) or about 2 keys.

• Over-the-wrist comfort, foam and stretch TPU (not latex) construction
• Easily visible yellow foam floats with black split ring
• Extra security for those keys you don't want to lose
• Floats approximately two keys, 1 oz (28g)
• Please test in shallow water before heading into the deep