This is a 6.5”Milspec Spring Assist Grenade M67 Design Tactical Black Folding Pocket Knife. This knife was made by 440 stainless steel. The blade is sharpened. The knife comes with a steel liner lock to secure the blade when opened. The handle of the knife features a belt clip. There is Milspec logo on the blade. The whole handle design look like a grenade M67. The blade opening switch design be a safety ring which used on the grenade. This is a wonderful collectibles pocket knife for military design.