Attaches to the velcro at the leading edge of the softbox, they can be attached and removed very quickly. Reducing the angle of light to 50 degrees, they add additional control when you need to ensure light is only striking the subject or background where you want it. Their soft-sided, foldable design makes them very portable so they can be with you wherever your shooting schedule takes you. All CL Softgrids come with a high quality, soft-sided storage case.