Zero Glide ZS-20 Acoustic Guitar Nut for 12-String Acoustic Guitar<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Kit Includes: 1 Bone Zero Glide Nut， 4 fret sizes， instructions </span></li><li><span class="a-list-item"> Length: 52.0mm (2-3/64in) </span></li><li><span class="a-list-item"> Width: 5.9mm (15/64in) </span></li><li><span class="a-list-item"> Height: 9.5mm (3/8in) </span></li><li><span class="a-list-item"> Spacing: 41.7mm (1-41/64in) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41VlEuYNyVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41mpmixWnmL.jpg" noproxy>