For -S 70-200mm F4G ED VR tripod mount, the lens can be directly installed on the tripod, the is more stable, the rotation operation can be freely performed, and the control performance is excellent.Product use: Fix the lens on a tripod, which can be easily rotated in all directions to meet the needs.The tripod mount ring is attached to a tripod, and it helps you secure and balance a heavy or long-lens telephoto lens that hangs on the front of the camera.The tripod ring mounting ring is made of high-quality aviation aluminum, which is light and strong; the surface is anodized; the appearance and workmanship are exquisite, far superior to the old version and similar products made by molds;The tripod ring is made of high-strength metal, and there is no safety problem when used with the lens. Precision all-metal material processing and surface hardening treatment, delicate, smooth and wear-resistantName: RT1 Tripod RingRing inner diameter: about 67mmRing width: Approximately 18mmApplicable lenses:For -S 70-200mm f/4G ED VRFor -S 300mm f/ PF ED VRColour:blackMaterial:Aluminum alloyPackage Contents:1 * Tripod Mount RingOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.