This set includes:
1. Friction board (friction rail): 500mm x 100mm x 50mm
It made of aluminium anodized surface.
2. Precision Pulley: Low friction.
3. Friction block: Rectangular shape, with 4 surfaces with different friction coefficient.
4. Dynamometers: 1N and 2N
5. Weights: 20g x 9 with hanger, 10g x 3, 5g x 2, 2g x 3.