Flex Scrims are made of a slightly heavier spring steel and are made in both Open End and Solid Frames. The Matthews Flex Scrims have pins for easy mounting into either a Superflex Arm, a Flex Arm or a Grip Head. Color coded on one of the pins for easy identification of the fabric sewn on. Flex Scrims are available in 10"x12" or 12"x20" and a variety of fabrics. Matthews Flex Frames are black powder coated to minimize unwanted reflections.