United Scientific™ Roller Only For Inclined Plane

This Versatile And Tough Steel Inclined Plane Includes A Graduated Protractor And An Adjustable Pulley. Incline Is 4" Wide X 23" Long. Includes A 14 Oz. Roller. Also Includes A Pan And Cord For Masses. Includes Activity Guide.
This versatile and tough steel inclined plane includes a graduated protractor and an adjustable pulley. Incline is 4" wide x 23" long. Includes a 14 oz. roller that can be used as a vehicle on the plane or as a counterweight. Also includes a pan and cord for masses. Includes activity guide.