Cool Pup Faucet Waterers make it easy to offer dogs cool, fresh, clean water outdoors-conveniently just a lick away. Self-serve Cool Pup Faucet Waterers attach to any outdoor faucet in seconds, without the use of tools. No assembly required. Waterer is activated when dogs lick the lever-once they stop licking, the water shuts off. Made in the USA. Materials: Chrome, zinc, and stainless steel Dimensions: 3 1/2" x 1 1/4" x 1 1/4" Caution: Always make sure your Faucet Waterer is working and your dog knows how to use it before leaving him without an alternate water source.