Dexcom patches are manufactured on a 3M medical-grade, hypoallergenic, long-wearing, tape that won't fray. Patches will come precut to the selected option. Yes, you can use the full coverage ones on any device it does NOT have to have a cutout. Here at RockaDex we understand the importance of securing sensors, CGMs and pumps, so our range of tape and cut-out options for diabetic devices are designed to give you maximum life and protection while looking completely adorable! Available for any…