SAFE & DURABLE: The hot water bottle with cover is made of new nature rubber, longer life than traditional ordinary rubber hot water bag. Double covered design to make sure maximum safety and transfer the heat perfectly.For more safety, the temperature of hot water should not exceed 80 degrees Celsius. LARGE CAPACITY: Hot water bottles for pain relief with dimensions 25 cm x 15 cm and 110 cm x 120cm waist belt has a capacity of 290g, recommended to fill to two-third of bottle. HOT PACK FOR PAIN RELIEF: Hot water bag for pain relief be used alone as a remedy for aches, pains and sports injuries, such as back, neck & shoulder pain, muscle sore, menstrual cramps and tension. COMFORTABLE PLUSH WAIST COVER: Hot bag for pain relief with Waist Cover and soft hand cover, the plush waist cover keep your hands and waist warm. Meanwhile, The soft cover helps to prevent the heat from contacting your skin directly which cause burns.