PULLEYS, Primary Class Pack, Pack

40 assorted sized pulleys in total. 2mm hole diameter black pulleys: 5 x 10mm, 5 x 12mm, 5 x 25mm, 5 x 30mm 4mm hole diameter red pulleys: 5 x 18mm, 5 x 25mm, 5 x 30mm, 5 x 40mm Plus 10 converters to reduce hole diameters from 4mm to 2mm.