OPTI 6-inch Abstract Effect Wheels are designed to be used with Multi Mirror or the Multi Facet Mirror. Both are especially good for effects projection in multi-sensory therapy rooms (sometimes referred to as Snoezelen rooms). The Multi Facet Mirror breaks up the image, reflects these split sections, and animates them with rotation (can be magnetic or standard bossed).
What's the difference between bossed wheels and magnetic wheels?
A bossed, or standard wheel, is a wheel that needs to be pushed or screwed into a wheel rotator.
A magnetic wheel simply attaches itself, magnetically, to the adapter on a wheel rotator (more user-friendly).