The No8 is the most sold and versatile size in the ever growing line of Opinel folding knives. This knife is small enough to be used as a pocket knife and has a 3 1/4" blade. This knife features the Virobloc Safety rings, which was invented by Marcel Opinel in 1955. Cut out of stainless steel, the Virobloc has two sections, one fixed and one sliding. In addition to locking the blade open (safety while in use), it is also possible to lock the blade closed (safety on the go).