The phot r speed ring for bowens s features indexed flex rod holes that allow you to effortlessly mount any square rectangular strip or octagonal softbox to bowens flash heads the ring will also fit most other brands of softbox the sturdy all metal ring rotates 360deg to facilitate orientation or to clear obstacles in tight quarters on the outside of the ring it has 12 holes so it can connect to your softbox this speedring allows you to fit most square rectangle octagon and strip soft