This iconic science toy has been updated to make a classy desk accessory. Featuring beech wood base and stainless steel frame and 5 balls. Simply lift one ball and let it do to watch conserved momentum and energy work in front of you! This is the medium size standing at 14cm tall.
Learn. Play. Explore. Experience it all.
The desk-sized cradle. A steady click that a child can start and stop themselves, and a first look at momentum passing through things that do not seem to move.
