The waterproof plaster protector is made of flexible PVC material and transparent waterproof nylon with a wide neoprene strip that does not pinch or shear the skin.? Comfortable? Easy to use? Antimicrobial treatment? Reusable for up to 8 weeks? Not suitable for open or for swimming activitiesOpening Circumference is 52-62cm.Weight of the product is 250g.