Certified Safe and Fully Guaranteed- All REVIX ice packs are made of premium material. IDEAL GIFTS for after surgery, shin splint and hip replacement. Moreover, REVIX customer support team provides after-sales support and services to customers worldwide. Cold Compress Reusable Ice Pack- Combines of double sealed and seamed edges with extra-thick nylon cover are reliable to reuse and gel leakage proof. Store the back ice pack in the freezer with the plastic bag included so that it is ready to use. Handsfree- Two straps ensure the cold pack to be secured on the back for a full range of movement and effective to soothe aches and pain. Sectional construction design ensures the gel evenly distributes offering a better pain relief effect. Long-lasting ice packs for injuries reusable gel with lower ice point (-13?), stays pliable when frozen. 30% more gel than general gel ice pack, maintain temperatures longer for better-alleviating pain around vertebrae and joints on your injured area. Maximum Pain Relief- This ice packs for injuries is newly designed with a soft plush side, gentle on the skin, and avoids condensation water. Ultra-large size 22 x 9'' works well on the back and shoulders offering effective cold therapy for sore muscles, sprains, reduces arthritis pain, and inflammation.