Haoge LVR-200AS 200mm Dual Dovetails Nodal Slide Vertical Rail with 90 Degree Quick Release Dovetail Compatible with Arca-Swiss SUNWAYFOTO The Haoge LVR-200AS Vertical Rail comes with Arca-Swiss-compatible quick release dovetail on the end. Precision CNC machined, compatible with all Arca-Swiss style quick release Clamp, Ballhead and Panorama Head. The most important function of this product is that it can create a vertical component for mounting your camera. Integrated Arca-Swiss-compatible quick release dovetail. Double Arca-Swiss-compatible male dovetail rail. 10PCS 1/4"-20 threaded sockets.