This is a kit for removing the increasingly common Torx mounting screws. I needed to replace an Xbox controller pad my kids were wearing out and after looking at reviews of many different bits and screwdrivers I settled on this one. The bits are magnetic, which helps prevent losing small screws. They're also quite long, which helps to get to the countersunk screws, which is why I didn't buy regular sized bits. They are laser engraved for size identification and come in a clear plastic storage box.