I purchased a thousand of these Push Pins from Midwest Products, at about $5 per box of 50 for a model building project with students at a local middle school, and they are worthless. If you need push pins you are better off spending the $7 per box for the German made pins, sold by Peck (A to Z Corp.) I sent Midwest and e-mail explaining the problem, and got no reply. I have attached a drawing showing what the problem is. (loose shafts and bent tips.)