HIGH QUALITY - You need outdoor gear that's as tough as you are, which is why we sell only the highest quality products that are built to last.Providing you with the best in the industry. FAST RELIEF, ANYTIME, ANYWHERE - Perfect for eg pain and treating joint and muscular aches and pains, headaches, toothache, general bruising, minor burns and reducing swelling and inflammation. REASONABLE SIZE - Longer pack length allows to fit to most body parts, Ideal size(23*13cm) works for back, neck or shoulders, as well as knees and elbows and can be used on most body parts. EASY TO USE - Cool in freezer, heat in microwave or hot water. Heat it in the microwave for 30-60 seconds if the gel packs in room temperature, 60-90 seconds if the gel packs are frozen. Holds heat for ages and freezes fast and stays really cold for ages too (Follow instructions on pack). DURABLE AND REUSABLE - Our hot and cold packs are well made to a high standard from strong, comfortable nylon with rounded corners - Filled with high performance non toxic gel they don't split or burst and they keep going for years.