SYH&AQYE 7pcs Plastic Pulley Kits Set, Small Parts Model Making Accessories for Belt Assembly Toy Cars Automobiles Robots DIY

Made of high quality plastic, wearable and long service life, The products are for toys pulleys spare parts, suitable for DIY model technology production, Small parts, easy to use, great model making accessories for all kinds of cars, robots, etc, This is the pulley set including 7 kinds of gear parts. It can meet your DIY needs, 2A means center shaft is 1.95mm and close-fitting with 2mm shaft. 2B means center shaft is 2.05mm and loose-fitting with 2mm shaft