This mechanical pencil component absolutely DOES NOT WORK VERY WELL. I put mine
into a Coleto sweet 4 and while I'm writing with it, it retracts every few
minutes. I have tried changing the amounts of pressure I use while writing, I
have tried to extend the component slowly just until it locks, but no matter
what, it retracts while writing. This is beyond annoying, I don't feel like I
got what I paid for....