Six white round objects are arranged in two rows of three on a light marble surface. Each has a central knob: two knobs are wooden, two are plain white, and two are elongated black slots instead of knobs.

Six white round objects are arranged in two rows of three on a light marble surface. Each has a central knob: two knobs are wooden, two are plain white, and two are elongated black slots instead of knobs.

Six white round objects are arranged in two rows of three on a light marble surface. Each has a central knob: two knobs are wooden, two are plain white, and two are elongated black slots instead of knobs.