UGears STEM LAB Curvimeter
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UGears STEM LAB Curvimeter

$19.99
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Buy any two STEM LAB models and receive this model for FREE!  Just add all three models to the cart, and the discount is automatically applied at checkout. Enjoy your savings - $27.99 value! ------------------- CLICK HERE TO SHOP STEM LAB COLLECTION ------------------- When you measure the length of a straight surface, you use a ruler or a tape measurer. These tools aren't as useful when you need to measure the length of a curve; instead, you need a curvimeter, which is even more exact than a compass. To learn about this invention and build a model you'll be proud to display, purchase the UGears STEM LAB Curvimeter from our STEM Lab kits. This item looks like a clock, except that its face displays distances in centimeters, inches, meters, and feet rather than times. + Read More To use the device, you roll the wheel across the item that needs measuring. As the wheel moves, the measuring hand moves as well, tracking how far the wheel has traveled. If your distance is greater th

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