Durable and Versatile Gel Ice Packs - Contains 5 small ice packs for replacement, always ready to use. Made of heavy-duty, puncture-resistant plastic with a tear-proof non-woven fabric backing, thick lining and strong seal to prevent leaks. Hands-free design - Ice packs reusable with a separate stretch sleeve can be moved around to reach the exact places you need and stay in place, no need to hold them when icing, just insert the ice packs into the sleeve when applying. Gel ice packs are great for tired, dry and puffy eyes, headaches, migraines, allergies and hay fever. Flexible when frozen - Our cold pack uses expert grade gel that won't freeze in -18, it will still stay bendable after 1-2h. You can place it around your body parts with the soft and lightweight sleeve, no need to worry about slipping. Cold therapy will provide you with effective pain relief and muscle care. Hot Cold Therapy - Suitable for freezers and microwaves. Cold can be used by freezing the gel pack in the freezer for at least 2 hours or reheating it in the microwave for 10 seconds for heat therapy. For more cold, use the PE side and for less cold and to protect sensitive skin from direct contact with the cold pack, use the non-woven side.