TheProfoto OCF Speedringis a Profoto Speedring designed for fast and easy on-location photography. The OCF Speedring is used for mounting an OCF Softbox on your off-camera flash. It is not your everyday Speedring, though. Not only is it more compact and lightweight, but the patent-pending design to allows you to snap on the softbox without having to bend and fumble with the rods, while the clever color-codes show you exactly how to assemble the unit. The classic Profoto rubber collar and clasp makes it easy to mount the OCF Speedring on the off-camera flash.