Check the listing for details. SMDV Comet Speed Ring Mount Adapter for SMDV Alpha Speedbox Softbox. Condition: New. Listed at 29.90 USD. SHIPPING WORLDWIDE SMDV Comet Adapter for SMDV Alpha Speedbox SoftboxesFor Alpha Speedbox-A80, A90, A100, and A110 CONDITION: New Limited to repair or replacement at Manufacturer's or Seller's option.Defective item must be returned to the manufacturer (SMDV) or the manufacturer's U.S. service center by the buyer. We are an authorized dealer for SMDV products for the U.S. and Canada. Product Description Aluminum speed ring adapter for mounting SMDV Alpha Speedbox on Comet mount Compatible with all SMDV Alpha Speedbox softboxes:Alpha Speedbox-A80,Alpha Speedbox-A90,Alpha Speedbox-A100,Alpha Speedbox-A110,Not for use with SMDV's plastic speed ring.SMDV's patented speed ring is NOT included. This is for the Comet mount adapter only. PLEASE UNDERSTAND THAT THE SPEED RING IN THE PICTURE IS FOR ILLUSTRATION ONLY. THE SPEED RING IS NOT AN INCLUDED ITEM.