5 1/8″ closed. 4″ Stainless Sandvik blade.
To lock: Turn bolster away from slit in handle.
All Opinel stainless steel blades are modified by adding at least 0.40% of carbon to the “sandvik” blend , giving it a good cutting edge but which explains why knife blades are not totally corrosion-proof. Only a carbon-free steel would be, but it would not have the hardness guaranteeing a good cutting quality and the excellent strength of the cutting edge.
Made in France