These amazing UV Spinners from Sean each feature a different color of UV glass that springs to beautiful like when you hit it with the black light. This one is extra special because if has both blue and purple UV in it, so sweet. These are the types of tops that will blow the minds of your friends, because they look like regular clear glass in normal light....but then you blast the UV rays on them and they glow with radiant glory! Very cool, don't miss these!