You'll be "blown" away by how much everyone loves the whistle with a coil wristband! Featuring a matching plastic coil wristband that's attached by a split key ring, this 1 7/8" x 7/8" whistle is a great fit for any safety program. Whistles are perfect for joggers, walkers, seniors and students. The split key ring keeps your house or car key handy when you're out for that walk or jog. At 1 7/8" w x 7/8" h, this favor is available in 4 colors.