Waterproof & Breathable & Long Stay: This transparent sensor covers is waterproof and breathable, it allows your skin freely breath while protects. and also its reliable sticky ensures a very long time use, keeps stay on over 15 days and 15 showers. No Hole & No Stick in the center: Adhesive patches with no hole and no glue in the center for full protection and easier change in case.(No stick to the sensor) Hypoallergenic adhesive: Latex-Free , breathable and comfortable, leaves no residue on skin. Easy to Use & Easy to Read: Pre-cut back paper, easy to use by yourself, no need other help. Also, you can easily get a reading through the tape as normal. 120 Pieces Economy Pack ensures a long time use. Skin-liked Clear Heavy-duty Patches both suitable for girls/boys. Sensor patches are your best partners. Not stick with sensor: waterproof patch has no holes and no glue, designed with cotton protection sensor in the middle, so that the adhesive patch can make your sensor , beautiful and practical; Please note that the sensor is not included in the package Easy to use: the waterproof protection sticker easy peel backing is split to make their application easier, simply apply the round tape to the skin and to the device to keep your sensor looking good with plenty of protection Safe material: each patch is made with latex-free acrylic adhesive, very soft and thin, it dries quickly, stretches and moves with your body for maximum comfort and less irritation, you are safe every time you use it Waterproof and sweatproof: the patch is waterproof, using our 2-layer pack you can freestyle swim, all water activities can last 10 days and can withstand more than 10 showers; No matter what sport you do, it keep your sensor from being by sweat Color: As Shown Material: plastic Package Contents: 120Pack Libre Sensor Covers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.