Simple Machines: Class Incline Planes
Show how great weights can be lifted with small forces. See how much force is needed to pull the cart up the ramp. 16" L X 3.25" W X variable height.
Call: 1-800-627-9393
Fax: 1-800-289-3960
1523 Old Niles Ferry Road
Maryville, TN 37803
Service is Everything®