Inclined Plane, 16.5 Inch - Demonstrates Several Machine Concepts - Simple Machines, Eisco Labs

Inclined plane with cart demonstrates several machine concepts, including friction and effort. Made of particle board and wooden blocks. Consists of a triangle-shaped wedge, incline plane base with grooves, and a blue trolley with rubber wheels, attached string and built-in mass.
No assembly required. Includes an instruction manual to facilitate use of the apparatus by students and teachers. Durable construction makes this model ideal for classroom use.
Required components not included: Small masses (pennies, small weights), a ruler, and a protractor.
Measures 16.5" x 3.25" with adjustable height.