This is a high quality sheath made to fit the BOB (Brothers of Bushcraft) knife and also works great for the ESEE 3 and ESEE 4 knives, and many other knives with a 3.75" - 4.5" blade. The inside pouch length is 7.375" and the opening is 1.75". It features heavy duty leather construction, medium length belt loop dangler and a firesteel loop. The dangler loop features two heavy duty snaps so you do not need to remove your belt to put the sheath on. It comes with a fire starter and survival whistle.