H2O4K9 water bottles are designed especially for dogs on the go! Every dog needs to be kept hydrated when out, whether being exercised or at play. The patented lid has been designed to accommodate a dogs natural drinking style. Made from 18/8 food grade stainless steel with a toxin free Polypropylene screw top lid and a food grade silicone gasket to keep the bottles water tight. This is a high quality, stylish yet functional product. H2O4K9 is 100% recyclable. These 25oz (700ml) bottles are designed for larger dogs and are all available in Stainless Steel (Silver) with 3 brilliantly colourful lids: Blue, Green and Yellow. You can also get a Neosling bottle holder to match?