Tubular spring scales feature a clear plastic tube case that allows children to view internal working component.
- A useful appliance for measuring weight of the objects
- Convenient to hold in hand
- Can be hung on the wall
By The Numbers
We brainstorm and conceptualize.
Our designers brainstorm hundreds of ideas to create the most exciting projects that are also age-appropriate and educational.
Delivered to YOU!
Every month, you’ll receive a cool new project, with all the materials and instructions for hours of hands-on fun and learning.