One-Piece Moulded Hot Water Bottle with a Fleece Contour Cover in Blue The Snger Natural Rubber Hot Water Bottle provides soothing heat in cold nights and increases well-being. Their technically new developed hot water bottle is constructed from a single piece of rubber being moulded integrally with the bottle walls, instead of being bonded. This makes the Snger rubber hot water bottle a truly one-piece moulded, water-tight product. See also 1514-O and 1514-R for different colours, 1513-DB , 1513-W , 1513-P and 1513-R for hot water bottles without the covers, S630 for a 3L bottle or 1541-BP and 1541-DB for children's bottles Lost your stopper? See the 1542 to get a spare Ref: UTWI485