Danze D423607SS Did-U-Wave Single Handle Electronic Pull-Down Kitchen Faucet with SnapBack Retraction, Stainless Steel Single hole mount kitchen faucet powered by dc unit; batteries required Two ceramic disc valves provides a tight seal for drip free performance and ensures durability over time Spout measures 17-3/4 Inch high and 8-1/8 Inch long with 300 degree swivel spout Two function spray head including spray and aerated stream Snapback retraction system with grip lock weight provides a consistent spray head retraction