GLOW 3 Rectangle Softboxes are designed as the softbox standard for studio and location situations where diffused light is desired. While the entire series employs advanced technology designed to create perfect images for portrait, wedding, editorial and product still life, this 12x18" size addresses a specific function for small sets, tight use with subjects, and more dramatic gradations. Not only used for this, but as a rectangular shape in reflective and translucent objects. GLOW Softbox materials and construction are outstanding. The critical ingredients in any softbox are the internal reflective fabric, the front diffuser/baffle and the shape of the box. Every Glow product features removable double diffusers. Light spread is extremely even, pleasing and contrast balanced. Reinforced support rod pocket, seams and Velcro closures make assembly and setup trouble-free.