Drfeify 6pcs RC Motor Pinion Gear, 48DP 3.175mm 17T-22T Motor Pinion Gears Parts Set Kit for 1/10 RC Car Motor

Work adequately enough, but there's no stamping on them so it's very hard to tell how many teeth are on each. Major drawback is that, depending on what vehicle you have, these WILL NOT BE WIDE ENOUGH for your spur gear and will chew them up fast. Of course the listing has no actual dimensions so buyer beware

Works great thanks amazon

Not as described add stated 48Dp but sent me standard 48p