For those everyday oopsies! Reusable hot/cold bead pack with adjustable elastic band. Cold helps reduce swelling, minor pain, insect bites, and soothes fevers—just place in the freezer for 1 hour. Heat relieves muscle aches, growing pains, or an upset stomach—just place in hot water for 7 minutes. PE, non-woven fabric, FSC paper propylene glycol, sodium carboxymethyl cellulose, water(closed) 0.5 x 4.75 x 0.25 (open) 1.25 x 4.75 x 0.25