HOT WATER BOTTLE: Ideal for warming up your bed on a cold winter night, keeping warm as you snuggle up on the sofa or as a great way to ease those aches and pain NATURAL RUBBER: Use all year round, this handy water bottle may be filled with cold water to keep you cool on a hot day! PAIN RELIEF: Gorgeous soft and cosy fleece cover. Please note: Colour Varies One Supplied BED WARMER: Cover - 100% polyester. Hot water bottle is made of natural rubber PERFECT GIFT: Perfect stocking filler gift this Christmas Perfect to treat aches, pains or improve sleep by heating up your bed