Profoto Speedring for OCF Flash Heads Description The Speeding for OCF Flash Heads from Profit is part of the Off-Camera Flash system developed for the B2 head but also compatible with the B1 Off-Camera Flash. The speeding has been scaled down and fitted with an easy patent- pending snap-in system for the soft box rods while the hard rubber collar has been replaced with a lighter weight silicone rubber substitute. The speeding and optional soft box are able to rotate 360 degrees. Features: Works exclusively with B2 and B1 flash heads and OCF soft boxes The classic Profit rubber collar allows you to rotate the speeding and soft box 360 Patent-pending design allows you to quickly and easily snap the optional soft box Color-coded holes for fast and easy setup Compact and lightweight Product Details: Color: Black Brand: Profoto Style: Classic Material: Rubber Included Components: Profoto Speedring for OCF Flash Heads Product Dimensions: 2.05 x 5.91 x 5.91 inches Item Weight: 7.7 ounces Item model number: 101210 Is Discontinued By Manufacturer: No Date First Available: March 4, 2015 Manufacturer: Profoto