found at DigiDirect
With MagMod's MagBox Speedring Adapater for your Elinchrom strobe, your softbox becomes a super versatile soft light source—and a crazy good investment for your photography business. The durable, powder-coated speedring adapters set up and tear down in less than 1 second so you can switch between speedlights and strobes with ease.
MagBox Speedring Adapter uses spring-loaded tabs that secure it to your fixture. The MagBox softbox magnetically attaches to the adapter.