I have 2 razors...very similar and I honestly don't know why I have 2! One thinning shears which I use all the time! and 3 pair of shears. Washi is my absolute favorite!! Then centerix and I can't remember the other one..but its my newest one and I don't like it. I have had the washi the longest and love them 7 years and only sharpened once! From now on that is all I will buy... my thinning shear is washi also. and I think they are 6"