These AA battery holders with wires and switch can house 3 AA batteries, and you will find they are excellent for use in any hobby or science project. Each holder includes wire leads for easy hook-up, as well as a simple on/off switch, allowing you to exert greater control over your project and battery use. Recommended for electronics applications, science fair projects, and more! Set includes 10 holders.
Easily assemble a working alarm motion detector!
This genuine meteorite is great for the rock collector in your family!
Is it a demonstration of a scientific law or a work of art?
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Find the hidden crystals when you open your own geodes from this fun set.
Defy gravity with this cool balancing eagle!
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