These are pretty good for the price and not having to wait in line at the store with people on their phones is nice too. They work just like any other mechanical pencils and write just fine. I liked these because of all the different colors and the price for 12 of them plus they have the little grip/cushion thing on them. You can fit a pencil eraser on top and use that if you'd like to save the little white eraser they come with and it still works fine. As a bonus the grip part of the pencil can be loosened and removed. So in theory you could save it and use it over and over on other mechanical pencils this size. I just started using my box of 12 and am happy overall with them. For the price there really is no problem with them, just use them however you'd like.