Economical pulley for simple machine experiments.

• Double plastic pulley, in tandem
• Pulley diameters of 38 and 50 mm

A high quality, double plastic pulley in tandem, on a steel frame, with hooks at each end carrying two plastic pulleys with diameters of 38 and 50 mm respectively. Inner gap of pulley measures 3 mm, overall length is 11.4 cm. Capable of holding over 30 lbs of weight.