The Elinchrom Snaplux Speedring for Bowens S-Mount is required for mounting Snaplux Quick-Open Softboxes on any flash head utilizing a full-sized Bowens S-Mount. Snaplux modifiers do not include speedrings enabling you to combine them with any lighting system without incurring extra costs. This lightweight, metal speed ring is compatible with all Snaplux sizes and shapes and will enable direct mounting to many flash brands, including but not limited to Flashpoint, Godox, Phottix, and Interfit.