Economical pulley for simple machine experiments.

• Single plastic pulley
• Diameter 50 mm
• Low friction design
• Open sided frame for ease of use

A high quality, single wheeled plastic pulley, on an open sided steel frame, with hooks at each end and one low friction, ball bearing plastic pulley with a diameter of 50 mm. The open sided frame greatly facilitates stringing up as no 'threading' is involved. Inner gap of pulley measures 3 mm, overall length is 9.8 cm. Capable of holding over 30 lbs of weight.