Estone 1Set 5 in1 Pro Leathercraft Adjustable Stitching and Groover Crease Leather Tool Material: wood + steel Total length: Approx. 13.5cm/5.2" Adjustable groover width from 1.5-20mm 3 Replace Edge Beveler Tips width 0.8mm, 1.0mm, 1.2mm It will be a great tool when you do leather craft.