X-ACTO KNIFE #416 OFF-SET BLADES. SALE IS FOR 2 PACKAGES, 1 CONTAINING 10 BLADES AND 1 CONTAINING 15 BLADES, TOTAL OF 25 BLADES.  VERY OLD STOCK AND MADE IN U.S.A.  ALTHOUGH THESE ARE NEW IN ORIGINAL UNOPENED PACKAGES I CANNOT  SAY WITH CERTAINTY THAT THERE IS NOT SOME SURFACE CORROSION ON THE BLADES, HOWEVER I'M SURE THAT THEY ARE VERY SHARP.  PRICED ACCORDINGLY.