Abstract: Provided is a hand washing device with which malfunctions of a washing liquid dispenser can be prevented during hand washing without the need for a complex device structure. A hand washing device 1 comprises: a water discharger 10 that discharges water or hot water when an object is detected; and a washing liquid dispenser 20 that dispenses a washing liquid. The water discharger 10 includes: a water discharge port 12; a water discharge sensor 11 that detects an object within a detection range; and a water discharge control unit 16 that controls the discharge/cutoff of water or hot water from the water discharge port 12 on the basis of a detection signal of the water discharge sensor 11.

Abstract: A water faucet includes a water faucet main body and a spout head detachably attached to the water faucet main body. The water faucet main body has a support column having a water path and a coupling pipe protruding in a radial direction of the support column. The spout head is attached to the water faucet main body in a state of accommodating the coupling pipe.

Abstract: A rotary handle is attached to a hot water single faucet and is a handle for controlling water discharge by rotational operation by an operator. A coefficient of friction of a grip member is set large in order to guide fingers of the operator to the grip member (operation surface) installed at a part of an outer surface of the rotary handle when the operator grasps the rotary handle. The grip member forms a line-shaped operation surface extending to a position not reaching a joint position of the rotary handle and the hot water single faucet along the outer surface in a direction of an axis of rotation.