Features Easy to use: the powder in the bag quickly absorbs water and becomes a gel with a certain elasticity, which is used as a refrigerant. SAFE TO USE These gel packs are filled with a high polymer compound that is clean, non-toxic, safe and environmentally friendly. WIDE APPLICATION Commonly used to keep food cool in portable cooler boxes or as a cold compress to relieve the pain of minor injuries. or in insulated shipping containers to keep the products cool during transit. Reusable ice bag: easy to carry, convenient to use, reusable, not easy to damage, concise, beautiful and quite practical. SELF SEALING WATER INLET The water inlet is designed with self-sealing structure, so no gel will flow out. Specifications: Bag material: PE Capacity: 200ml, 400ml, 600ml (optional) Size: 200 ml: 15 x 10 cm / 5.9 x 3.93 inches. 400 ml: 20 x 12 cm / 7.87 x 4.72 inches. 600 ml: 23 x 13 cm / 9.05 x 5.11 inches. Quantity: 10 Instructions: 1. Open the water inlet of the gel pack and fill in some water as needed. 2. Drain excess air from the inside of the gel pack and then press the seal slightly together to seal it. 3. After a few seconds, electricity and water react and become gel. The gel does not flow out of the water inlet, but do not press or press it too hard and do not come into contact with sharp objects. 4. Place this product in the fridge for 4 to 5 hours until it freezes to a lump, and then remove it to use. 5. During use, the gel packs gradually thaw and finally resume the gel shape, and you can put them back in the fridge for the next use. Note: 1. This product is non-toxic and its contents are inedible. 2. Normally, the inner gel does not flow out, but please do not press or press it too hard. 3. Please do not poke, scratch or cut the bag with sharp objects. Package includes: 10 x gel packs Package List