The Cokin NX Series Filter Frame Combo Pack includes two aluminum frames measuring 100x100 mm and 100x143.5 mm, designed for seamless integration with Cokin NX Series filter holders. These lightweight frames maintain the slim profile of the holder to minimize vignetting when using ultra-wide-angle lenses. The durable aluminum construction protects the filter edges and allows for safe handling without smudging the glass surfaces. Both frames accommodate 2 mm thick square filters, with the 100x100 mm size suitable for standard square filters and the 100x143.5 mm frame compatible with larger square filters from various manufacturers. This combination offers photographers versatile options for different shooting situations. The frames work with Cokin's range of filters, including Nuances Extreme ND8, ND64, ND1024, Nuances Clearsky, and Nuances Infrared 720 filters, which are sold separately. The design focuses on practical functionality for photographers who need reliable filter mounting solutions that preserve image quality. The aluminum material ensures long-term durability with minimal overall weight. This combo pack provides photographers with a flexible system to expand their creative possibilities in neutral density, clear sky, and infrared photography applications. The frames are specifically designed to work within the Cokin NX Series ecosystem but remain compatible with similarly sized filters from other brands, provided the thickness specifications match. This approach offers users equipment options that support various photographic techniques and lighting conditions.