No prescription required for these multi-purpose travel towels packed like pills. Simply pop one out, soak with a little water and the pill instantly transforms into a sturdy 11 inches x 9 inches textured towel. Great for camping, hiking, cleaning dirty faces after an ice cream cone, or anytime you need a towel on-the-go. Easy to carry in purse, diaper bag, briefcase, backpack or your clear carry-on for the plane. Card has eight towels.