The floating keychains are made of neoprene and EPE material, which can float on the water, durable and not easy to break, non-toxic and safe for your use, lightweight, and easy to carry.  Practical accessory for preventing your key from dropping into the water and going missing. Suitable for many water activities, such as boating, fishing, whitewater rafting, canoeing, sailing, jet ski, water skiing, and other outdoor water sports.