The Duncan Phoenix Diabolo features a stable, hard rubber shell that retains its shape. It also comes with an integrated axle system that allows you to convert the fixed axle into a 1-way bearing axle. Great for single or multiple diabolo play, this is an excellent yo-yo to give as a holiday gift or birthday present.
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
Every kid needs one of these spheres!
This magic bird defies gravity before your very eyes!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
Build a model green house and 9 other green energy-related devices with this great kit!
Learn all about the science of light, optics and visual perception with this wonderful kit!