4pcs Metal Dome Knob Volume Tone Control for Electric Guitar Bass Screw Type<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> All metal material without plastics inside. </span></li><li><span class="a-list-item"> Works for Pots of 6mm in diameter. </span></li><li><span class="a-list-item"> Durable gilded metal material. </span></li><li><span class="a-list-item"> 4pcs dome knobs with coarse knurl on the sides. </span></li><li><span class="a-list-item"> Satisfaction Guaranteed:Fulfilled by amazon，if not satisfied with the item，you can return it without hassle. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51GV4If7JKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51bGSuEeEQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41Msuhu8VRL.jpg" noproxy>