Designed specially  for students. This inclined plane made of metal base board and wooden board plane are connected by a hinge, allowing the plane to be clamped at any angle from 0 to 45deg. Vertical displacement, angular displacement and distance from the hinge can be measured with built in scales, arc scale, attached to the metal base board .The pulley can be adjusted to ensure that the cord runs parallel to the plane. Supplied with pan and roller included but without weight set.