Finally - a pin for model building which is comfortable to use! These pins feature over-sized heads and they are fine, so they penetrate most building boards easily. The head has enough surface area to put light pressure on balsa parts to hold them in place, but they work better when paired with our Pin Clamps - a great way to hold delicate parts without crushing them! These pins are more comfortable than working with T-pins! From Midwest Products - Model #587 50 pins per package.