These D battery holders can house two D 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. Recommended for electronics applications, science fair projects, and more! Set includes 10 holders.
See the solar system in action!
This classic desk toy will keep you amused!
Watch what your music can create with this amazing Snap Circuits set!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Heavy-duty microscope for high-school and college biology labs. Magnification of up to 1000X.
This high precision gyroscope will amaze you with rotational speed and ease of precision.