This 2-cell D battery holder with wires is excellent for use in any hobby or science project. Comes with wire leads for easy hook-up. Recommended for electronics applications, for use in science fair projects and more!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
Easily assemble a working alarm motion detector!
Build over 100 exciting electronic projects with this easy to use kit!
This mirascope creates a 3D hologram image!
Learn how solar cells transform light into electrical energy with this great kit!
Comprehensive collection of 30 fossils.
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