Kmise A8234 4 Piece Golden Guitar Top Hat Speed Control Knob， 2 Volume &amp; Tone 6mm Split Shaft<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Split Shaft: 6mm(about 0.24 inch) </span></li><li><span class="a-list-item"> Color: all as the picture shown </span></li><li><span class="a-list-item"> high quality and testing is fine </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/519GuFQ8R8L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mf0mOpdUL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41EwdduoQrL.jpg" noproxy>