This leather sheath is precision sewn and made of very high grade 8/9 oz. cowhide with a welt in the seam so the blade does not cut the threads. It is soft enough so that most handles will slide in for final water fitting. Fits blade BL409, BL410, BL482, and BL545 and many more. Opening is 6-3/4" deep and 1-3/4" wide.