The Elinchrom Snaplux Speedring for Broncolor is required for mounting Snaplux Quick-Open Softboxes on any flash head utilizing a Broncolor 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 Broncolor strobes, including but not limited to Siros, Siros-L, Move, and Pulso.