Look through the eyepiece and experience the magic of the kaleidoscope. Robotics Lab Mix & Match Kaleidoscope from Mudpuppy reveals colorful jewels when you turn the viewing tube. This special version includes additional fun on the outside with 3 robot friends to mix and match when you turn tube! -6.5 tall x 2.25 diameter -Sturdy matte-finish board material -Classic kaleidoscope + mix & match feature -Double the fun! -Ages 3