Check the listing for details. Fotodiox Speedring Insert Only For Bowens Speedring For EZ-Pro Softboxes. Condition: New. Listed at 33.48 USD. Fotodiox Pro Speedring Insert - Replacement for Bowens Speedring; Suitable for EZ-Pro softboxes, Fotodiox beauty dishes and standard softboxesAll-metal, replaceable speed ring insert; Standard speed ring for softboxes and beauty dishesOuter diameter 5-7/8 inches24 month manufacturer's warrantyCompatible with: Bowen's Gemini; Calumet Travelite; Interfit (Stellar, X, XD, Stellar Extreme, Venus); JTL (Versalight-D&E); Neewer (DS & GS); Savage (FT-150); Westcott (Skylux, Strobelite Plus); Impact (VC, VS & VSD); Photoflex; Rime LiteSpare part for Pro Studio Solution EZ-Pro Softboxes, Fotodiox Beauty Dishes or Fotodiox Pro Softboxes (with existing speed ring plate); Allows installation on almost any strobe by replacing the insert.