Lanxri QR Baseplate Dovetail Clamp with Double Rod Adapter for 19mm Studio Product Highlights Attaches Camera/Accessory to ARRI Standard Dovetail Plate 19mm Studio Standard Rod Spacing (104mm Center to Center) 1/4"-20 Threaded Holes on the Sides Comes with a 1/4"-20 and 3/8"-16 Low Profile Screws Aluminum Alloy Construction Product Description This 19mm Studio Baseplate allows you to use your camera on an ARRI standard dovetail plate and mount accessories such as follow focus systems and matte boxes via 19mm studio rods. It features a brake that enables an instant quick lock or release of ARRI standard dovetail plate. It also features 1/4"-20 mounting points for attachment of additional accessories. Net Weight: 329 g You Get: 1 x 19mm Studio Baseplate 1 x Allen Wrench Before you place an order, please provide me with English information to facilitate our delivery and logistics