This is a Westcott Photo Basics Softbox. Its front diffuser measures 36 x 48" (91 x 122cm). It gathers, intensifies, and softens the light emitted from your flash head or monolight. A Speed Ring Adapter is required and must be purchased separately. Additionally - the front panel is removable.
Use this size for a three- four person portrait or a full-length portrait of one-two children.
Two heat vents keep internal temperature under control
Inner baffle adds diffusion.