Knives with viroblock

Viroblock

— knife lock, developed by Opinel and still being the "calling card" of this brand's knives. The key element of the lock is a swivel ring with a longitudinal slot, installed in the front of the handle, at the point of its connection with the blade. To open or close the knife (and it is fixed both in the closed and in the open position), you need to turn the ring so that the slot is opposite the blade — then the blade can pass through the ring to the desired position. If the slot is not opposite the blade, the latter, when trying to open or close, rests against the ring and cannot budge.