I've bought these patches in various colours, black and pink being my favourites, they are stretchy and stay on really well sometimes up to 14 days and sometimes i change them after 7 days if they do start to come away or i just want a change in look. I have to admit that i use these in conjunction with a flexible libre cover i bought from Etsy which goes over the sensor and gives the patch something more to grip on to as i don't think the Libre's adhesive, covers enough area for the patch to adhere too alone, you'll find the patch will miss it and makes it pointless really. I would love Diabetic Supply to sell these covers as they give extra security to your sensor and you can get them in various colours too. These patches are great and don't cause irritation to my skin and come off easily but yet at the same time stay firmly in place. Only one downside my husband has to put it on me as i find it too fiddly to do on my own, but this isn't a real problem.