MEDIBEADS Moist Heat/Cold Foot Wraps (Pair)MEDIBEADS Moist Heat Cold Foot Wraps (Pair) Item # 34570 The MediBeads Foot Wraps provide soothing relief for tired, aching sore feet. For moist heat therapy, just microwave for a minute or two, and enjoy deeply penetrating moist heat therapy for up to 30 minutes. The patent pending MediBeads sewn into the wrap absorb moisture from the air to create moist heat, so no water or mess is involved. For cold therapy, just place in freezer before using.