Freestyle Libre Sensor Covers,Waterproof Durable Sweatproof Breathable CGM Patches Without Glue, Fit for Most Libre Sensor (Skin Colour)

I've never had a Freestyle Libre sensor prior to the Freestyle Libre 2 system. I can only presume that the advert pictures must be of a Freestyle Libre 1 system, as the shape is not round like the Libre 2 or Libre 3 sensors are. The advert claims that this covers fit all size sensors, so I assumed that if the hole in the middle was small enough it could probably catch most of the Libre 2 sensor sticky bit to protect it. As these were so cheap I thought that I'd give them a try.For those who may not be familiar with the sizes I have attached some pictures to show what the Libre 2 sensor loks like when applied, and without removing the sticky patch from the back of these covers, I have shown how much of the sensor would be covered with one of these patches. As you can seeYou should be able to see from the attached pictures that these covers are totally useless for the Libre 2 sensor. At best, and if you fiddled around with the patch a bit you could probably catch about a quarter of the sensors sticky bit. The manufacturer would clearly have known this so their advert is misleading and these covers are being mis-sold. That is why I am giving these 2 stars, as for a Freestyle Libre 2 sensor, they are totally unfit for purpose, for the other sizes I can't really comment on as I have not used those.