CheetahSatnd Quick Series Softbox Washer and Screw Set.This also will fit most other brands of softbox if they use a curved washer.For example: Phottix...Adorama......Neewer.......and any other brands that use a Curved Washer like the photo.
Low Profile Speed Ring Insert G mount (6"/152mm)
These speedring inserts have a 152mm (6") outer diameter. Available for Bowen, Paul C. Buff, Balcar, Profoto, Photogenic, Speedlights.
Convert softboxes with a 152mm (6") Speedring Insert to work with Bowen S Mount lights and flashes
This GODOX S2 Bracket allows you to use your Bowens mount light modifiers with speedlights. You can save hundreds of dollars by not having to purchase light modifiers specifically for your speedlights.