Version: Coast. Unwind with the Mathmos color effect wheels. Simply insert the Mathmos color effect wheel into your Mathmos Space projector and turn the device on. The image will be projected onto the wall. You can choose between the Mathmos design "Counting Sheep" and "Coastal" by the renowned designer Jessica Hogarth. Available designs: Coast, Counting Sheep, Wheels, Zoo, Countryside, London, Sky. Product type: Effect wheel.