The 680SS push-back creamer faucet enables the operator to pour the precise amount of foam every time. Pushing the handle back moves a stainless steel piston, exposing small holes. The turbulence created by beer passing through the holes products a creamy head. When the handle is released, an internal compression spring moves the piston back, stopping the flow of beer. Composed of 304 Stainless Steel. WINE Certified!