2 in 1 hot or cold treatment hydrogel bead mask, reusable up to 300 times. Phthalate free, PAHs free, Latex free, BPA free, meets ISO10993-5. Use cold for: headaches, puffy eyes, tiredness, allergies, stress relief, spa treatments and refreshing cooling. Use hot for: blepharitis, dry eye, MGD (meibomian gland dysfunction), styes, cysts and warming relaxation. Hydrogel beads form to the face, maintain temperature, are soft, tactile and attractive. Easy clean wipeable PVC material is hygienic and non toxic.