This Softbox is sized 1x4 (30x120cm) so it's a medium slim softbox (Stripelite). Also for this softbox there is a grid optionally available. It comes with two diffusers and a speedring - please specify which flash system you are using. Softboxes, in general, are an easy to transport and durable light tool often used as the key light. Our softboxes come in all shapes and sizes to provide shaping control efforthless. They have a deeper shape, a recessed front, front and inner removable diffusers, and a highly reflective silver interior. We also have soft grids for every size and type.