The Speed Ring for Dynalite and Lowel Omni-lights from Impact features indexed flex rod holes that allow you to effortlessly mount any square, rectangular, strip or octagonal Luxbanx softbox to Dynalite flash heads and Lowel Omni-light hot lights. The ring will also fit most other brands of softbox. The sturdy all-metal ring rotates 360 degrees to facilitate orientation or to clear obstacles in tight quarters. It has 3/8"-16 taps on two sides to allow mounting directly to grip gear such as Impacts Swivel Umbrella Adapter (CA-108), 3 Section Double Articulated Arm (BHE-119) or Super Clamp (CC-106R). Please see specs for full flash head compatibility list.