Opinel knives are famous for their quality and simplicity. They are so similar to 18th century penny knives that with only slight modifications such as sanding the handle and roughing up the blade, people have made their own very good penny knife reproductions. The very sharp carbon-steel blade opens to an overall length of 5-1/2 inches. This is a simple swivel-hinge knife with no locking mechanism. Imported from France.