These are not the original swabs. This do exactly what Astro states they will do. If you look at the fine print it says they will only ship two. The cutting in and out should only occur if there is not sufficient reflective surfaces for the Bluetooth to bounce from. Id say, if youre considering picking up some wrist wraps, go with these ones. Very happy about this. Mine didnt come with the same design as the pictures but it is still all black. (After an hour you will have headache) I got is specifically so it would hit 16 on center studs, but the mounting parts fall at about 30. I wear a size 9 which is size 40 so the brand is on the large size.