A CLASSIC FOR LEFT HANDED USERS. WITH TRAPEZOID BLADE. Do you sometimes wonder why we''ve never bothered to update our SECUNORM PROFI? It is, after all four decades old! Well to be honest, it has never been necessary. Yesterday''s pioneer is today''s classic. A timeless shape, a robust form, a versatile ability: what more could you want? The "forefather" of all of our TÜV-tested safety knives, the SECUNORM PROFI features automatic blade retraction and has therewith protected generations of users.