Set of 4 single AA battery holders that snap together to form either parallel or series connection.
By using these 4 battery holders you can get 1.5V, 3V, 4.5V or 6V (series connection) or get 4x current at 1.5V (parallel connection).
Great, versatile AA battery holders for any electricity project.
Have fun building your very own FM radio!
This science kit is an essential introduction to physics knowledge!
This simple but amusing magnetic toy will keep you busy for hours!
A beautiful desk toy for your favorite person’s office!!
Perform awesome experiments using everyday materials found in any kitchen!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!