Diameter of this puck is 3 1/2 inches wide by 7/8 inches thick. The raised ring that attaches to the pre 2003 version of the Corki Weeks Infinite Visions Kaleidoscope is 2 1/4 inches approx in diameter. Sorry we cannot get more of the kaleidoscope portion the infinite visions kaleidoscope was discontinued some years ago. Once this cell has sold we cannot get one like it. They are hard to get and all unique.