Pro Studio Solutions EZ-Pro 36" (90cm) Octagon Softbox with Speedring for Canon Flash Speedlite 600EX-RT, 580EX, 580EX II, 430EX and more 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 Manufacturer Warranty