SPECIFICATIONS:

* The black board is made of wood and fixed within a wooden slotted frame of

over all size75*70 cms.

* Four frictionless pulleys are adjustable in the slots of the frame and the frame

is provided with suitable arrangement for fixing it to a wall.

* The unit is complete with four hangers and 16iron nickelled slotted weights of

50gms each.

* six pulleys ad 24iron nickelled slotted weights and four hangers of 50gms each.