See Deez, Music for your eyes, (by Tedco) is a stainless steel metal spinning disc with 3 outer rings & 3 inner circles of different holographic designs printed on card stock. Just give them a spin with a finger or two. Spin times vary but can last for a few minutes. Each disc comes in a cd case. This is the brightest and most colorful spinning disc we sell. Diameter = 4 1/4 inches (108 mm).