Hair Thinner Shears: One side cutting blade & other thinner blade with 31 Teeth, Mirror polish finish, Teeth crafted with a special electrical wire operated cutter, High cutting performance, Long lasting quality, Adjustable set screw, Simi-off set handles, Fixed finger rest, Size: 6” without finger rest. Material: This scissors is & can be manufactured using three different types of Stainless Steel. 1- SUS-440C Stainless Steel. Rockwell HRC 58-60 2- SUS-420 Japanese Stainless Steel. Rockwell HRC 54-56. 3- 410 ( J-1 ) Stainless Steel and Rockwell HRC 42-44.