Description Are you looking for a professional, yet affordable? Are you in search of a sturdy, trustworthy worm and worm wheel that can do multiple jobs? If yes, look no further! Our professional worm and worm wheel must meet you needs. It is one of the best choices for you.Features- Color: Golden.- Material: Copper.- Size: 2.00 x 2.00 x 1.30cm/ 0.79 x 0.79 x 0.51 inch.- Set include one 0.5 modulus 5mm hole dia brass worm gear shaft and one 40 teeth brass worm gear wheel.- The transmission structure of worm shaft is simple, compact, small volume and light weight.- Turn a round of worm gear teeth, can get a large transmission ratio.- Like big transmission ratio, if use with gear transmission, will need to take the multi-stage transmission.- material selection, carefully processing create product.Package Including 1 x worm wheeln1 x worm shaft