Space Projector with Liquid WheelThe rotating coloured oils produce striking visual images that can be projected onto walls and other surfaces. Compact and light, the Space Projector's one metre diameter image is perfect for individual use for tracking and colour work. How does it work? Load an oil wheel into the side of the Space Projector. Use the focus ring on the projector to focus the image on the desired wall ceiling. The oil wheel turns within the projector creating a