-RSYIYO Libre 2 sensor covers are made from cooling silky fabric for all-day comfort with zero foreign body sensation. -The easy-peel backing paper enables one-handed application, it‘s user-friendly for first-time users, seniors, and children. -Hypoallergenic and latex-free adhesive, which is suitable for all skin-type. There is no need to worry about it causing allergies or leaving stains. Adhesive easy to remove no residuals or skin irritation. The patch came off nicely without pain. -The non-gule central design does not affect the sensor's reading, and it will not damage the sensor when you replace the patch. -Made with German Henkel adhesive, these patches keep your sensor securely in place for 10–15 days. The smooth, premium fabric prevents curling, fading, and fraying.