This is a cloth covered, rice, flax seed & lavender, 5"x5" bag that you store in the freezer. It is a great alternative to the traditional bag of ice, (or bag of peas!) as it never melts or freezes solid. Store in the freezer to be ready for an instant, mess-free cold compress, for life's bumps and bruises! Covered in a variety of kid pleasing flannel/cotton covers. Lasts and lasts.