You are using an outdated browser, that is maybe not supported by this website.
There are especially problems with Internet Explorer prior to version 9. Internet Explorer 8 on Windows XP does not work with SSL. We suggest you the usage of a modern browser.
Engine pinion - 5,5mm 10Z for 2mm motor shaft, brass, 2 pieces, Slot.it SIPI10
Engine pinion with 5,5mm diameter from brass for 2mm motor shaft with 10 teeth (no toy for children, products are suitable only for the use for adults, i.e. for advanced hobby amateur handicraftsmen and experts)