Description: Pack included: 10 pieces Sensor Adhesive Patches.Enough quantity will meet your different sports. Durable: These Sensor Covers Made of high elastic cloth material, waterproof, nonslip, stick more firmly, keeps the sweat and water from loosening your device. Easy to use: The sensor covers are very easy to use. Simply peel and stick, you just need to stick it on your skin, easy to cover any type of Your sensor. Protector: Adhesive Bandages won't stick onto your sensor but protect around it well, in case you need to change the patch, it brings no damage to the sensor. Waterproof: The size is about 10 x 8.4cm, They have strong waterproof.You don't need to worry about shower, rain, swimming, workouts and sporting activities Specification: Material: High Elastic Cloth Size: 10 x 8.4cm/3.94inch x3.31inch Package Includes: 10 Pieces Sensor Cover Patch Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on line shopping!