Wheels and Axles Pack
A massive collection of assorted wheels: 40mm card wheels x 400, 50mm card wheels x 100, 40mm beechwood wheels x 40, 50mm beechwood wheels x 20, 60mm beechwood wheels x 10, 1m of 4mm i.d. tubing (end stops), 1m of 5mm i.d. tubing (spacers), and 20 lengths of 4 x 300mm dowel. All wheels have 4mm centres.