The Chimera Speed Rings are mostly used within a lightbank as they enable working with single or multiple sources changing the intensity of the source directly.The center of the Chimera Lightbank System, speed rings have the perfect design and durability that enhance the working of the entire systemMade from T6 aluminum injection mold and 33 percent glass-filled nylon, the Chimera Speed Rings adapt to the heat and rigors of any studioThe rings can be mounted on any Chimera strobe head ensuring a positive connectionThe Chimera Speed Rings are used with the medium size shoe-mount flash like the Vivitar 283