The insert is suitable for various face coverings and works well with a disposable, reusable cloth or homemade face mask. The lightweight plastic mask bracket serves as a 3D frame that you can place within the mask's interior. It works to prevent friction against your nose and skin, creating a bit of extra breathing space between you and the protective face covering while maintaining safe coverage of your nose and mouth. Easy to wash, it allows you to disinfect and reuse the mask bracket whenever you want. Specifications: 3.7" (L) x 0.39" (W) x 4.3" (H) 9.5cm (L) x 1cm (W) x 11cm (H) Plastic Two per package Washable and reusable