“I’ve only worn one of the patches for 6 days having just received them. My original order never arrived. On reporting this to the seller I swiftly received a duplicate order courtesy of ParcelForce. Excellent Customer Service! I’ve changed my sensor this morning and the patch was securely fastened to my arm and the sensor after 6 days. This is a first time for me as the patches I had previously were scrunched up within 5 days. Highly recommended on initial usage.”