For demonstrating the principles of parallelogram.
It consists of wooden board of thickness 12mm having dimension 45x30cm (LXH) fitted vertically on two pillars. The said board can be slide vertically & fixed at any desired height.
Supplied with two set of Z – Pulleys & 3 set of slotted weight 50gmx5 (Steel CP). These slotted weights are used to verify the parallelogram law of vectors. Supplied without drawing sheet, Drawing pins & mirror strips.