Spider - SpiderPro AS-RC2 Adapter Plate for Arca Swiss Manfrotto | Tripods and Accessories | Spider at Unique Photo
Manfrotto 200PL RC2-System Quick Release Plate with 1/4"-20 Screw and 3/8" Bushing Adapter
Spider Camera Holster AS-RC2 Adapter Plate 311 B&H Photo Video
Amazon.com : SIOTI 323 RC2 Quick Release Plate Adapter, Rapid Connect Adapter with Quick Release Plate for Manfrotto Monopod, Manfrotto Tripod, or Other Ball Head and Tripod : Electronics