Consists of 7 blocks, all faces fully polished, 25mm thick.:
Bi-convex, 75mm long curved faces, 100mm radius
Bi-concave, 75mm long curved faces, 100mm radius
Rectangle 75 x 50mm
Semi-circular 75mm dia.
Triangle 60 x 60 x 60° with 58mm side
Triangle 90 x 45 x 45° with 75mm hypotenuse
Triangle 90 x 60 x 30° with 75mm hypotenuse

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Diameter: 50mm
With ball bearing
50mm diameter pulley carried on an aluminium boss 20 x 20 x 110mm, with a hole and clamping screw to accommodate rods up to 13mm diameter. 
Type: Bench Mounting
Tapped holes are provided so that the nylon pulley (with ball bearing) may be fitted onto the boss with its axis of rotation in any one of the three planes. 

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Tandem Metal Pulleys
Type: Double
Diameter: 50 & 38mm
Open sided frame with hooks at each end carrying pulleys with ball bearings. 
The open side frame allows for quick and easy stringing up as no threading is involved.

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Diameter: 50mm
Material: Metal
Type: Double
50mm diameter pulley wheels mounted in metal frame with 2 hooks. 

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Material: Metal
Type: Single
Diameter: 50mm
50mm diameter pulley wheel mounted in metal frame with 2 hooks.

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Material: Plastic
In-line Plastic Pulleys
Open sided frame with hooks at each end carrying pulleys with ball bearings. 
Type: Double
The open side frame allows for quick and easy stringing up as no threading is involved.

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Mateial: Plastic
Type: Double
High quality, double plastic pulley in parallel, on a steel frame, with hooks at each end carrying two plastic pulleys with a diameter of 50 mm. 

Technical Specifications :
Overall length: 8.9 cm
Capable of holding over 13kg of weight.
Inner gap of pulley: 4 mm

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Material: Plastic
Diameter: 50mm
Type: Triple
50mm diameter plastic pulleys with two hooks mounted in metal frame.

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