iShoot Is-n840d Tripod Mount Ring for Nikon AF 80-400mm F/4.5-5.6d Ed VR Lens

iShoot IS-N840D Tripod Mount Ring for Nikon AF 80-400mm f/4.5-5.6D ED VR Lens Product model: IS-N840D iShoot IS-N840D tripod mount ring (metal) is designed for lenses listed below (please check model carefully), Nikon AF 80-400mm f/4.5-5.6D ED VR Nikon AF-S 300mm f/4D IF-ED The tripod mount ring also features a arca-type interface so it can be mounted directly on any standard arca-swiss compatible ball heads or clamps. By using a tripod mount ring you can normally get better stability and therefore get better pictures, for the mount ring provides a better balance and stabilisation. Main features: Made of aluminum by CNC precision machining, surface processed by anodic oxidation to avoid rust, with stainless steel screws, it only weights approximately 140g Compared to the original model, this mount ring has an enhanced structure and an improved design, it features a convenient quick release plate interface Tripod ring diameter is about 77mm. It has a 1/4'' screw hole. Arca swiss typ