Adapter diameter 4"
Total diameter 7 1/2"
A heavy-duty speed ring compatible with rectangular, octagon and strip softboxes, allowing them to be used with studio lights with Bowens mounts.
* Compatible with Bowens, Visico excel, JTL, Mettle, Fancier, Calumet Travelite etc. Studio Flash
* Material: Aluminum
* Collar rotates and locks. 12 x holes (holes are 9mm in diameter)
* Weight: 350g
* 1 x Bowens Mount Speedring