These plastic welding staples are a game changer in the world of industrial and scientific tools... Through trial and error I found that these staples are incredibly easy to use and repair plastic with minimal effort. The strong hold of the staples ensures a long-lasting repair without any need for further maintenence. The only downside is that it takes a bit of practice to get the hang of using the staples, but once you do, you`ll never go back to any OTHER repair tool..