size Round: diameter 7CM, thickness 0.04CM Oval: length 10.2CM, width 8.5CM, thickness 0.04CM Weight: round 1.3g, oval 2.3g Color: transparent Material: TPU WATERPROOF, BREATHABLE AND LONG-LASTING - This clear sensor patch is waterproof and breathable, allowing your skin to breathe freely while being protected. LONG-LASTING 14 DAYS - Strong and reliable stickiness ensures long-lasting use for 14+ days and 14 showers. EASY TO USE AND EASY TO READ: Pre-cut paper, easy to use by yourself, no additional help needed. Also, you can easily read from tape as usual. Non-porous and non-stick in the center: Free-style free sticker for full protection and easier case replacement. (not sticking to the sensor) Hypoallergenic glue: latex-free medical material, breathable and comfortable, leaving no skin residue