An inclined plane is an essential tool for every physical science classroom. Use this four-foot-long, heavy-duty metal inclined plane to demonstrate and study frictional forces, potential and kinetic energy, and constant acceleration. Tough enough to support a fully loaded dynamics cart. Includes a 12" long metal support rod and adjustable-height pulley system. A clamp holder is required to support the inclined plane on a ring stand and is sold separately. Dimensions: 48" x 6".