Features 1、APPLICABLE LENS: Suitable for Z 180 to 600mm f5.6 to 6.3 VR lens. It helps to better balance the camera and lens on the tripod, better fix the heavy lens and reduce the weight between the lens and the body. 2、QUICK RELEASE PLATE, SCREW HOLE: There is a 100mm quick mount plate on the bottom with an for Arca interface, which allows you to mount the lens to a ball head, clamp that meets the standard of the for Arca interface. At the same time, the bottom is reserved for 1/4 inch and 3/8 inch screw holes, so that the lens can be directly mounted on a tripod. 3、EASY MOUNTING: Easy mounting, just loosen or lock the knob to loosen or fix the lens. Please make sure the dots are in a straight line before locking, and do not rotate the lens or this snap ring after fixing it. 4、SAFETY DESIGN: Built in soft pads to protect the lens from scratches. When installed correctly, the tripod ring will not wear out the lens and can be rotated freely. 5、PREMIUM MATERIAL: The tripod ring is made of aircraft aluminum, CNC fine machined, hollowed and weight reduction design, polished and anodized to ensure durability and stability. Specification Item Type: Tripod Mount Ring Material: Aluminum Alloy Interface: Bayonet Applicable Lens: For Z 180-600mm F5.6-6.3 VR Package List 1 x Tripod Mount Ring 1 x Wrench