Westcott Rapid Box XL 36" Octabox with Westcott Skylux Speedring (91.4 cm) The Rapid Box 36" Octa XL with Built-in Bowens S-type Speedring - 1/4-Stop Outer Diffusion Panel - 1/4-Stop Internal Baffle - Carry Case - One Year Wescott Warranty The Rapid Box 36" Octa XXL with Skylux Speedring Designed for constant lights and strobe heads An ideal main or fill light Provides soft and evenly reflected light