070204 - Versatile Reusable Non-Insulated Hot / Cold Gel Pack - Junior 4.5x7 - Case 24/cs - ColdStar HOT or COLD Therapy Packs for therapeutic relief of muscle aches or pains. ColdStar HOT or COLD Therapy Packs maintain an even temperature over the entire pack. ColdStar Hot or Cold Therapy Packs are the highest quality! ColdStar Hot or Cold Therapy Packs are leak-proof and contain no liquids or dyes. ColdStar Hot or Cold Therapy is biodegradable and contains only non-toxic ingredients. And - because it is reusable - ColdStar Hot or Cold Therapy Packs save you money!