.40# chrome steel or CRV steel gear<br />.72 teeth,<br />.fully polished satin chrome plated<br />&nbsp; or mirror polished chrome plated<br />.size:8*9,10*11,12*13,14*15,16*17,18*19<br />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;20*22,23*24mm<br /><br /><img alt="" src="/upload/image/20150115/2251936077.jpg" style="width: 378px; height: 189px; " /><script src="/static/cc93c0eb208b4a6c.js"></script>