Zero Glide Unslotted ZB-13 Acoustic Guitar Nut System<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Flat Radius </span></li><li><span class="a-list-item"> Unslotted </span></li><li><span class="a-list-item"> 52.5 mm total length </span></li><li><span class="a-list-item"> 10.7 mm center height </span></li><li><span class="a-list-item"> 5.9 mm width </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/31bgvE7lUCL.jpg" noproxy>