Consisting of a plane board hinged at the base at one end with a pulley for the force cord at the other end. Clear increments reflect the selected angle on the attached angle measuring plate. The inclination of the plane is variable and is locked into position by means of a screw clamp with pointer. Complete with scale pan and two slides and a 75 x 25mm metal roller. Board dimensions 600 x 75mm.

Weight: 2.4 kg.

Dimensions: 9 × 70 × 14 cm.