Seat diameter 35mm Inlet and outlet pipe diameter 14mm Product without pipe Adjustable double control cold and hot water temperature Refuse bitter water in winter, feel the temperature of love water bubble Soft skin , quiet and splash-free Selected soft skin bubbler, warmer and considerate water design, no more splashing water, cleaning stubborn stains, saving water and worry 304 stainless steel smooth switch fresh water high quality bubbler conservative Ceramic valve core installation steps First install the pins into the bottom of the faucet Align the faucet with the hole in the sink Place the rubber sheet and reinforced retaining ring into the bottom of the basin. Tighten the sleeve and copper pins. Screw the two hot and cold network pipes into the two water inlet holes in the faucet body. Check the tightness Connect the water inlet pipes to the hot and cold angle valves respectively, and the installation is completed.