Top Selling Large Folding Knives. This section has large pocket knives. Large pocket knives have blades 3 inches or larger and are a great choice for self defense purposes, hunting and outdoor activities. We keep a good stock of regular large folding pocket knives in stock. They are great for pawn shops, flea markets, store fronts, auction houses, gifts, knife shows. If you are looking to buy in bulk, we have bulk rate shipping for those large orders.