Fotodiox Pro 152mm (6in) Speedring Insert for Most Softboxes, Beauty Dishes and More - Comet, Dynalite, and Compatible Options:Speedring Insert Only the other side has an

the other side has an adjustable tension drag

Mounts M39 (x1 Thread Pitch) Screw Mount Russian SLR Lenses to M42 Screw Mount System cameras

Lens Mount: Bronica GS-1 (PG) Mount SLR Lens Body Mount: Fujifilm X-Series Mirrorless Camera Body Manufacturer: Fotodiox Inc

• Each grid is 2"x2" and 1

Lens Mount: Hasselblad V-Mount SLR Lens Body Mount: Nikon F Mount SLR Camera Body Manufacturer: Fotodiox Inc

Fotodiox Pro 152mm (6in) Speedring Insert for Most Softboxes, Beauty Dishes and More - Comet, Dynalite, and Compatible Options:Speedring Insert Only the other side has anDescription Specs Compatibility Product Highlights: Standard speedring insert for many light modifiers All metal interchangeable speedring insert Insert has an outer diameter of 6 inches (15. 2cm) Limited 2 Year Manufacturer Warranty The speedring insert is a replacement part for Pro Studio Solution EZ Pro Softboxes, Deep EZ Pro Parabolic Softboxes, EZ Pro Beauty Dishes, Fotodiox Lantern Softboxes, Classic Softboxes (speedring plate required), Classic