The Lens Set is an excellent set of 6 unmounted glass lenses with round edges. Each set includes one each of double convex, plano-convex, concavoconvex, double concave, plano-concave, and convexo-concave lens.
These are 50mm diameter.
Is it a demonstration of a scientific law or a work of art?
Make the coolest 3D pin art on your desk with this amazing desk toy.
Build over 100 exciting electronic projects with this easy to use kit!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
Build your own windmill generator kit by recycling a plastic bottle!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
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