Parallelogram OF Force Apparatus

(STAND TYPE) For demonstrating the principles of parallelogram. The apparatus comprises a strong drawing board 45x30cm fitted with two hooks for fixing to a wall. The whole board is painted black. It is supplied with two nos. Z-pulleys and 3 sets of iron C.P. slotted weights (50gmx5), supplied without Drawing sheets, drawing pins & mirror strips. It consists of wooden board of thickness 12mm having dimension 45x30cm (LXH) fitted vertically on two pillars.