*100% Brand New and high quality. Style: reduction gear Material: rubber Color: white as shown in the picture Packaging: OPP bag Packaging includes: pack of ten **according to the picture you choose Worm 6*10 (2A), plastic gear, worm gear is a kind of transmission gear. This worm can also be used as a coupling with low requirements. It can connect two long shafts with a diameter of 2mm. It is very practical in some simple small productions.