BIGTEDDY - String Action Ruler Gauge Measuring Tool for Electric Acoustic Guitar Bass Mandolin Banjo<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Suitable for string instruments such as guitar， bass， mandolin， banjo， etc </span></li><li><span class="a-list-item"> Pocket-sized with multi use on both side. Imperial (inches) One Side， Metric (millimetres) On The Other. With Conversion Chart of String Action at 12th Fret Printed. </span></li><li><span class="a-list-item"> Use To Measure: Nut / String / Bridge / Pickup Pole Piece / Saddle Height Plus Saddle Slot/ Fret Slot Depths </span></li><li><span class="a-list-item"> Perfect accurate action measurements for string instruments such as guitar， bass， mandolin， banjo， etc. </span></li><li><span class="a-list-item"> Made of stainless steel， accurate， durable nice outlook </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51ub3o9pQ4L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51OnCn5zDBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51AawMaEUHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51FjS6Q5jzL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41tAKnmC7BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51rSVTsjrqL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41wUqoUHvkL.jpg" noproxy>