Assorted pack of various sizes.

Assorted pack of various sizes.

A set of 7 plastic pulleys plus 6 elastics bands.

Sizes : 10 O.D, 2 I.D,

12 O.D, 2 I.D,

12 O.D, 4 I.D,

15 O.D, 4 I.D,

20 O.D, 4 I.D,

25 O.D, 4 I.D,

30 O.D, 4 I.D.

A set of 8 gears plus 2 racks, 1 spur and 1 worm.

Sizes range from 7.7mm O.D, 2mm I.D, 10 TEETH upto

46mm O.D, 4mm I.D, 70 TEETH.

Only available as a set.

Largest Dim 25mm

Largest Dim 37mm

Largest Dim 42mm

Largest Dim 50mm

Largest Dim 90mm.

( The only wheel with tread!)

Length approx 2.5cm

Largest pin has diameter of 1.4mm upto 2.2mm.

Smallest pin has diameter of 0.94mm upto 1.2mm.