Six (6) high quality, double plastic pulleys, each on an closed steel frame, with hooks at each end. Pulleys are of a low-friction, ball bearing design.
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) single pulleys with pulley diameter 50 mm. Overall length is 9.8 cm.
- Two (2) double parallel pulleys with pulley diameters of 50 mm Overall length is 14.8 cm.
- Two (2) triple parallel pulleys with pulley diameters of 50 mm. Overall length is 17.6 cm.
Inner gap of pulley measures 4 mm, overall length of each is 8.9 cm. Each pulley capable of holding over 50 lbs in weight.