This Manfrotto Ezybox Quadra Speed Ring Adapter allows the Ezybox Hotshoe, Hotrod Strip, and Hotrod Octa softboxes to be mounted to the Elinchrom Quadra flash head. The speed ring fits onto the adapter ring for the Hotrod Strip and Octa softboxes and directly into the back of the Ezybox Hotshoe softbox.
One of very few Quadra speed rings out there. Fits many manufacture's speed ring outer ring mechanics - not just Lastolite (which I don't use). Well made and nice for DiY'ing various Quadra head custom solutions. It is somewhat overpriced given very basic nature.
Another 5 star design from lastolite. It fits snuggly on my quadra head. It attaches well to the ezbox 24x24 softbox and is in line with the build quality that both lastolite and elinchrom are known for.