Aluminum alloy material, integrated body design, CNC precision processing, sturdy and durable, wear resistant, paint baking process. Uniquely designed to better protect your camera. Flocking on inner side prevents scratching of camera lens surface. Tripod support compatible with Nikon AF-S 70-200mm f/4G ED VR lens; lens can be directly installed on foot frame for stable shooting, allowing free rotation and excellent control performance. High-quality workmanship with reliable connection, ensuring lens safety during use. Condition: Item Type: Lens Mount Ring Model: RT-1 Material: Metal Color: As shown in pictures Fitment: For Nikon AF-S 70-200mm f/4G ED VR, For Nikon AF-S 300mm f/4E PF ED VR Quantity: 1 piece Weight: Approx. 156g Circle Inner Diameter: Approx. 67mm / 2.64 inches Circle Width: Approx. 18mm / 0.71 inches Package Includes: 1 x Lens Mount Ring