1)High Quality; 2)Comfortable Use; 3)Simple, Generous; 4)Special Design Casing: stainless steel 304 (the cover thickness is 0.8 to 1.0mm) Material: stainless steel 304 Automatic operation Only one drop of soap released from hand-free dispenser One drop: 1 to 1.5CC LED flashes three (3) times means to indicate in use mode LED continues to flash blue to indicate low battery Power turns on ...