KEEPS YOU WARM FOR HOURS: The luxurious hot water bottle without cover is designed to retain heat to ensure your comfort. The two sides of the hot water bottle have a different texture which let you experience the heat differently. One side is ribbed which provides a heat barrier and strong grip and the other side is flat providing you with maximum heat. Pick your favourite side and enjoy the soothing experience EASY TO USE AND LEAKPROOF: With its wide mouth it is easy to fill and use. It comes with clear and easy to follow instructions that shows how you can easily and safely fill your hot pack for pain relief. Our bottles have a secure lock system and each bottle is carefully tested as part of the manufacturing process for maximum safety. A cover is not included GREAT FOR PAIN RELIEF AND TO SOOTHE YOU: The hot bag is mulitfunctional. Use it for menstrual cramps, period pain, hot and cold therapy, stomach ache, sore muscles in your back, neck and shoulders or legs, during pregnancy or as a feet warmer. It is ideal for snuggling up on the couch or keeping you warm on cold winter evenings. The bottle is made of PVC and carries no strong smell like the classic rubber hot water bottle DURABLE, SAFE TO USE AND ECO-FRIENDLY: The bottle is BS1970:2012 compliant, the globally used British Safety Standard for hot water bottles, meaning it is leakproof and durable. The hot water bottle for cramps is eco-friendly and baby and kids safe. CAUTION: an adult should always supervise and never fill with boiling waters WE CARE ABOUT YOU: We offers premium quality lifestyle products to improve your well-being. Our team is always available to help you get the most out of your purchase.