Single-side-joystick-handle single-hole deck-mount bar sink faucets have one handle that extends from the side of the faucet body and looks like a joystick. Users can grip the joystick and move it to control water flow through the faucet.,Single-hole deck-mount bar sink faucets install into one hole on a bar sink or counter. They have a tall spout and a compact design, and are typically installed on small sinks in tight areas where food is prepared or beverages are served, such as bars and restaurants. They provide water for drinking, food preparation, or washing tasks.