We call these "Duck Knives" because the designer Willard Smith came up with a unique shape that allows you to pinch the top of the knife for a better hold when you move the knife forward or backward and we feel it looks like the profile of a duck. This 10.5" design is Willard's Grand Daddy creation and perfect for large game. It also provides the perfect instrument to whittle in large items in great detail. Willard is keeping the pioneer way of life alive in his non-profit settlement. A portion of the proceeds from the sale of this set will be donated to the Florida Panhandle Settlement in Blountstown, FL.