This Cowboy Studio soft box is great for Nikon Canon speeding flash as well as small strobe flashes. It pops open like an umbrella that makes setup much faster. It includes one 24"x36" soft box and one front diffuser and directional grid. It will need a flash umbrella mount for it to work with the soft box. Dimension of the box is 24x36 inches. Compact design for portability with Grid. Opens up like an umbrella Great for locations. Works on Nikon, Canon speed lights as well as small strobes (Alien bees). No rods to assembly and struggle. Storage case is included. This soft box is made to snap open like and umbrella to create a full sized soft box in seconds. You can use a standard umbrella flash bracket to accept the umbrella pole through the bracket and allow for a range of motion to the light movement. The zipper close hole in the soft box allows a stand to insert to the flash bracket to secure the bracket without light leaks.