The LEVITRON� OMEGA� top floats freely above it's base, operating in the same manner as the original. It's amazing to see as it floats freely in space with no strings attached. Challenging to operate, but suitable for ages 8 & up. LEVITRON� OMEGA� makes a memorable gift. Dim. 5.5"L x 5.5"W x 3.0"D Comes with: o Floating top o Magnetic OMEGA Base o Clear plastic lifter cover o Adjustable base leveling legs o Assortment of adjustable weights o Levitron� physics guide * o Instructional sheet Video of the Levitron at work: <a href="http://www.youtube.com/watch?v=BIjc2BNR248">YouTube</a>(Video not produced by us)