STEM LAB by UGears UTG0073 Curvimeter UP - SP RPM Range: 6V - 8

RPM Range: 6V - 8

sectional & hand-laid track or your own rail

Hitec’s sleekly-designed

MyTrickRC's Attack 17mm Blue Halo Headlights

100-ton trucks with hydraulic snubber and bracket details

STEM LAB by UGears UTG0073 Curvimeter UP - SP RPM Range: 6V - 8STEM LAB by UGears UTG0073 Curvimeter 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. This item looks like a clock, except that its face displays