... .Tolerance:+/-0.01mm 4.certification:ISO9001:2008 plastic spur gears for toysWe can produce gears, worms,worm gears ,gear boxes, worm ... ). Packaging: Inner packing--Polythene bags, outer packing--Paper cases suitable for transportation by air or sea;8). Competitive price, good quality ... our series, or have an OEM requirement to fill, please don't hesitate to contact us for more details. 9)some in stock ...