Made from a four-way stretchable, breathable material, the Steele Cooling Wrist Band does not hinder hand and arm movement and is very comfortable. After placing the wrist wrap flat in a freezer until frozen, user inserts hand and gently pulls until the wrap is centered on the wrist with gel side down (seam on top). Additional units can be stored in freezer or picnic cooler for easy switch out.Steele, Inc., Kingston, WA.