Review (5/5): Great Thinning scissors!
These are hearty scissors, I did not know what the little "key" was for, looked like a dog tag, so I chucked it.....it is to tighten or loosen the the blades and tension. Luckily I bought a pair of thinning shears as well from them and it also had the key....kept it this time and I have used it too.