Five (5) high quality, double plastic pulleys, each on an open sided steel frame, with hooks at each end. Pulleys are of a low-friction, ball bearing design. The open sided frame greatly facilitates stringing up as no 'threading' is involved.
This set of pulleys is very useful in the classroom to perform many different experimental set-ups investigating Newton's Force Laws. Included pulleys:
- Two (2) pulleys with pulley diameter 50 mm. Overall length is 9.8 cm.
- Two (2) double pulleys in tandem with pulley diameters of 38 and 50 mm respectively. Overall length is 14.8 cm.
- One (1) triple pulley in tandem with pulley diameters of 25, 38, and 50 mm respectively. Overall length is 17.6 cm.
Inner gap of pulley measures 3 mm, each capable of holding over 30 lbs in weight.