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
Botley* The Coding Robot, Single, Engage and inspire young learners in STEM with our next generation of coding robot, 100% screen-free, Engages children as young as 5 years in a basic form of coding utilising step coding and logic, Early programming skills