Rotate this 6.5 inch kaleidoscope to experience a constantly changing view of the world. With the ability to show amazing colors and shapes, the outside design reflects an old world charm. Excellent for use as as stocking stuffer or party favor.
This mirascope creates a 3D hologram image!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This high precision gyroscope will amaze you with rotational speed and ease of precision.
See the constellations visible in the Northern Hemisphere on this watch!
Build over 100 exciting electronic projects with this easy to use kit!