Level 1 products are great for beginners and everyday stylists. They provide exceptional value for your money without sacrificing quality and performance. Good hardness, corrosion resistance and is able to keep a great edge. Rockwell hardness is: 54-55. There is a 42 Teeth matching Thinner available at the same price. "FOR A MUCH LARGER DETAILED PICTURE OF THIS SHEAR, FIRST CLICK ON "VIEW FULL SIZE" THEN CLICK ON MAXIMIZE BUTTON IN THE UPPER RIGHT HAND CORNER OF THE PICTURE".