Designer slide wheels for the mathmos space projector each pack includes 4 different slides that you can also combine with traditional space projector oil slides to create a continuous lava lamp coloured background to the graphic projection oil wheels are available separatelyr r choose from either fairytale graphic pack or celebration graphic pack and create an image of up to 15m diameter on walls or ceilingsr designer slide packs to use with the mathmos space projector sold seperatelywo