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.
An ancient toy featuring optical illusion and hands-on fun that never grows old!
Ever wonder how to survive in the wilderness? These cards can help!
Start a great hobby in electronics with this state of the art electronics project lab!
This classic desk toy will keep you amused!
This advanced physics kit is perfect for older children already versed in physics knowledge!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!