Herolily Advanced Ice is the most cost effective ice replacement product on the market today! Better than other ice pack, ice sheet, ice bag, ice blanket, techni-ice and other ice products! Can be reused hundreds of times! It Stays Colder, Lasts Longer. Herolily Advanced Ice have passed The United States FDA Certification & SGS ISO9002 Certification! It is non-toxic and environmentally safeHerolily Advanced Ice HDR 4-Ply model can be reused hundreds of times! Better than other previous ice pack, ice sheet, ice bag, ice blanket, techni-ice & other ice products! Herolily Advanced Ice not only provide cooling effects but also an effective heat pack for sore muscles and back pain! HY-4PLY-5INX1:5″ (L) x 3.5″ (W) x 0.1″ (H) / Hydrated sheet 5″ (L) x 3.5″ (W) x 2.6″ (H). HY-4PLY-5INX3:11″ (L) x 5″ (W) x 0.1″ (H) / Hydrated sheet 11″ (L) x 5″ (W) x 2.5″ (H). HY-4PLY-5INX9:16″ (L) x 11″ (W) x 0.1″ (H) / Hydrated sheet 16″ (L) x 11″ (W) x 2.5″ (H). Camping, hunting, hiking, boating, fishing, drinks, perishables, foods, etc. Using it with cooler box or bag. Hot and cold therapy.