Use this kit to build your own infrared light barrier. Detailed instructions will help you put the kit together. Use the finished product for a science project, announcing visitors, warning you of burglars, etc.
This mirascope creates a 3D hologram image!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
This kit will get your paper plane ready for takeoff!
Find the hidden crystals when you open your own geodes from this fun set.
The Hoberman Sphere expands and contracts with a magical motion so fluid and simple that kids can't help but play with it for hours.
The large realistic model has removable organs that can be studied and set back into the correct position.
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