This is a 36 x 48" Westcott Pro Signature Softbox. Westcott has improved its softbox design, using heat-resistant fabric for its interiors. The rods are made of metal. The rear of the boxes is rounded to eliminate light flare.
Tent-style vents help to dissipate heat of up to 1,000 W. Suggested uses include group portraiture or single-person, full-length portraiture. While the overall dimensions of the softbox are 36 x 48", the front diffuser measures 31 x 42".