MDF Wheel, 6mm thick fibre board, 54mm and come with drilled centre holes for 4mm dowel, There are also available in 54mm and 74mm or you can order a mix bag
Force Board Kit, Compact & Low Maintenance. The Back Board Is Hard-Wearing With A Printed Grid And Is Bench-Standing. Detachable Feet For Easy Storage Ball, Provides The Teacher With A Simple Solution To Demonstrate The Principles Of The Parallelogram And Polygon Of Forces.
MDF Wheel, 6mm thick fibre board, 74mm and come with drilled centre holes for 4mm dowel, There are also available in 54mm and 74mm or you can order a mix bag