Ron Lake has been called "the father of the modern folding knife" and literally co-authored the book on them in 1988, How To Make Folding Knives. But while Ron is busymaking stunning custom folders in his Eugene, Oregon, workshop, he is always thinking. In this case, we believe he has perfected the lockback folder.Ron"s breakthrough is the Lake 111™ by Columbia River Knife & Tool® (CRKT®). It is equipped with his patented* Lock Back Safety (L.B.S.™) which allows the user to slide the small L.B.S. button forward to lock the blade both in the open and closed positions. When locked open, it is virtually impossible to accidentally release the blade even during vigorous cutting tasks. For those who are concerned about accidental opening, in-pocket or on-belt, simply slide the button forward to lock the knife closed until its next use.