Hog Saddle Multiuse Arca RC2 Connector- Dual Bolt Black. 5"/38mm) Arca-Swiss tripod clamps and legacy Manfrotto tripod heads that use RC2/200PL attachment plates. The Patent Pending design prevents horizontal movement with Manfrotto tripod heads and accommodates for Arca-Swiss plate retention slots and Feisol retention plungers. Specifications for Hog Saddle MARC QD Plate: Manufacturer: Hog Saddle Color: Black Attachment Type: Arca Fabric/Material: Aluminum Features of Hog Saddle MARC QD Plate CNC Machined Aluminum 1/4-20 & 3/8-16 Stainless Steel Mounting Screws Removable Recessed Retention Bolts HOG Saddle & PIG Saddle Compatible Center Bolt Capable for Spotting Scopes & Cameras Package Contents: Hog Saddle MARC QD Plate Hog Saddle MARC-QD: Multiuse Arca RC2 Connector- Dual Bolt Black