Fotodiox EZ-Pro Strip Softbox 12x56" with Speedring for Alien Bees Strobe Light B400, B800, B1600 Assemble and disassemble in a heartbeat; great for travel Pro-grade, heat-resistance fabric; seal-able venting for high-powered lamp or continuous lighting source Features an inner baffle and an outer diffusive cover for an even light throw Rotation speeding ring with thumb screw lock 24 month manufacture warranty