"AW WIDE MOUTH DOG 32 OZ. A wider cap size set at a 45 degree angle and a 1/2 inch wide stainless steel tip opening causes less restriction to water flow and provides outstanding water availiability even on the hotest days. A heavy duty, light resistant, semi-opaque plastic along with the standard no leak design and one piece tube/cap assembly makes for superior performance. Ideal for even the largest canines."