The product is a set of 50 white freestyle sensor covers specifically designed for the Libre 3 adhesive patches. Made of waterproof polyurethane material, these covers provide protection and durability for outdoor activities such as camping and hiking. With a waterproof feature, they ensure that the sensor remains secure and functional in various weather conditions. The adhesive backing makes it easy to apply and remove, providing a reliable solution for those looking to enhance their outdoor survival gear.