This gear starter pack contains a variety of gear types and sizes, all with a 4mm centre. * 2x 60 teeth gears * 2x 50 teeth gears * 2x 40 teeth gears * 2x 30 teeth gears * 2x 20 teeth gears * 2x 10 teeth gears * 2x 30mm long worm gears * 2x 100mm racks * 2x bevelled gears * Supplied in packs of 18 https://elecena.pl/product/27206363/rapid-gear-starter-pack-18 2024-11-10 https://elecena.pl/product/27206363/rapid-gear-starter-pack-18 2025-09-13