Note: Do not overfill the water, and need to gently squeeze the bottle body to vent, then tighten the cap and shake the extra long hot water bottles upside down for a few times to check if there is any leakage. If so, don't worry, please contact BoriYa to replace the body hot water bottle. [Multifunctional Long Hot Water Bottle Wearable] BoriYa long hot water bottle with strap can not only give you continuous warmth, but also fit for pain relief of muscle, arthritis, shoulder, neck, waist pain, women's period pain, etc. Also it can be iced for physical fever reduction and reduce muscle swelling. [Large Long Hot Water Bottle] The inner tank is made of 100% natural rubber, durable, leak proof , explosion-proof, and long lasting warmth than other rubber hot water bag.75cm,2L long hot water bottle with cover uk will helps you spend the cold winter comfortably. ✓?[Cover with Zipper - Easy to Remove] There is no trouble that other covers are hard to put on and take off.BoriYa large hot water bottle with cover adopts a zipper design, which can easily separate the inner tank of the warmies long hot water bottle and the faux fur cover,easy to clean,washable. [Hot Water Bottle with Soft Fluffy Cover] Hot water bottle with cover made of high-quality bionic rabbit fur so soft and skin-friendly and keep warmth long. The cover with hand warmer pocket, you can put hands in the pockets, hot water bag will bring you double warmth for body and hands.