Inclined Plane with Scale Wooden 60 x 10 cm, with pulley 22 mm dia hinged to wooden base 45 x 10 cms. Inclined Plane with Scale, education demonstration tool Wooden 60*10 cm, with pulley 22 mm dia hinged to wooden base 45*10 cms. Metal linear scale fixed edge of the plane, vertical linear and 0-45 ° angular scale screwed to base. Inclined Plane with Scale, education demonstration tool
