Very disappointed. Looks like a quality item. It even says "High quality" on the outside. Good case! Large selection of good staples! Good kit! Nice try with instructions. BUT. The internal plastic mechanism behind the shiny steel has broken, the block has jammed and is unusable if used again. Save yourself, it's too late for us now. Not well done inside as it broke when sewing the foam board to the softwood. So I grabbed my Swingline desktop stapler and got the job done in seconds. So if you have a desktop stapler, you don't need this POS. The black diamond in the picture is one of two pieces of plastic he coughed up. Not operational. Not high quality. Happen.