A person places a red ball into a plastic chute beneath an electronic ordering screen at a sushi restaurant. Plates of sushi move along a conveyor belt beneath the screen.

A person places a red ball into a plastic chute beneath an electronic ordering screen at a sushi restaurant. Plates of sushi move along a conveyor belt beneath the screen.

A person places a red ball into a plastic chute beneath an electronic ordering screen at a sushi restaurant. Plates of sushi move along a conveyor belt beneath the screen.