Mybecca ColdIce [4 Pack, 8OZ] Durable & Reusable Leak-Proof Instant Cold Pack Lunch Bags, Travel Coolers, Camping Trips & Sore Muscles Therapy COLD ICE PREMIUM LEAK PROOF SHIPPING REFRIGERANT / ICE SUBSTITUE | Size: 5.5 x 4 x 0.75 Inches Can be re-used to chill food or beverages. The gel packs are not to be applied DIRECTLY to the body. Customer is advised to wrap the gel in fabric. AMOUNT OF TIME REUSABLE: If the outer wrapper is intact, Cold Ice refrigerants can be used multiple times. Temperature: +30F/-1C Used to keep products refrigerated for an extended period of time. Leak-proof , semi-solid gel structure. (NOTE: Temperature directly dependent to cooling durations and environmental conditions.