Travel Child ID Wristband - 10 for $10 - Airport Friendly - Write Inside - Blue Mermaid Identification wristband. Soft to the skin. Waterproof, durable, adjustable, and disposable. Descrete space for contact information on inside of wristband. GREAT for travel with youngsters. Fits children and adults. Can be worn on wrist or ankle. Any ink pen can be used and the information will not wear off.