& Specifications: What you get: you will receive 20/30/50 pieces CGM tapes, enough quantity to satisfy your continuous and various needs of glucose monitor or other small device protection; Note: the sensor is not included. Adhesive patches with hole: each sensor cover is 7.3*8.2cm in outer diameter, and with a hole in the center,3 colours design, clear, black, beige, the clear colour is made of high quality TPU material, the black & beige colours are made of cotton and spandex, which keeps the sensor firm and artistic with less contact area and easier to peel off. Waterproof and sweatproof: the CGM sensor patches are 2-layer design, waterproof and quick-drying, it can protect your sensor device when cycling, running, swimming, showering or doing other land and water activities, and can last up to 10 days or 10 times showers Breathable and less irritation: these transparent adhesive patches are made of latex-free and soft PET film and paper, thin and comfortable as well a little stretch that fits your skin better, let you enjoy different day-night activities Easy to apply: these transparent patches are precut, just 3 steps to finish the installation, simply stick the round tape to the skin and the device, its very easy and convenient operation for yourself.