Interfit INT426 Softbox & Mask set 60 x 80cm Description. The 60 x 80cm 24 x 31 S-Type Grid Masks Softbox Kit provides variety to your lighting scheme. This versatile softbox features a Velcro rim that enables you to fit any of the supplied masks within seconds. Included in the kit are three interchangeable grids to alter the character of your light. The Grid Mask is used to channel the light by limiting where the light falls. This means that you can illuminate your subject without illuminating the rest of the scene resulting in a very dramatic & intimate effect. The Strip Mask produces long elegant highlights on your subject while channeling the light into a narrow ribbon. The Vignette Mask creates a natural round gradation that highlights your subject while gradually falling off through the rest of your image. This means that you can feature your subject as our eyes are naturally drawn to the brightest part of an image. The S-Type Softbox is made from durable lightweight materials & assembles quickly & easily.