This product is a Forehead Pad with a flap padded in two places that hangs down and tucks in between the seals inside the mask cushion.
It pads the forehead part of the mask as well as the nose bridge area. It is designed so that it does not increase the leak.
(In most cases it is better to get the mask liner that has a nose bridge pad sewn into it because that covers the entire silicone cushion)
This is a Nose Bridge Protector with extra padding and it is sold one to a package with an optional pad for the forehead if you should need extra padding.
It is washable and will last for many months. Colors are limited, most are darker patterns.
The Nose Bridge Protector E fits: