The QRR-1 from Jobu Design is an Arca-Swiss compatible Quick Release Clamp suitable for replacing the old square, rectangular, trapezoidal or otherwise proprietary clamp on your ballhead. It fits many different ball head brands that utilize 1 center mounting hole.
Clamp is 2" (5.08 cm) wide and features one (1) standard countersunk hole that will work with either a 1/4"-20 Flathead bolt or a 6mm Flathead bolt. The bottom of the clamp is slotted 0.260" wide by 0.790" long (6.5x20 mm).
Compatible with Arca-Swiss B-1, Manfrotto 484 RC2, 352 RC, 468 MGRCO and many others. Give us a call at 866-810-2456 to see if this clamp fits your ball head.
Includes: Clamp, One 1/4"-20 SAE bolt, two 6mm Metric bolts in 2 lengths