iShoot Lens Tripod Mount Ring Compatible with Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR,
CNC Machined Lens Collar Support Bracket Holder, Bottom is ARCA Fit Quick Release Plate for Tripod Ball Head ARCA-SWISS Type
Main features:
1. This lens tripod mount ring is tailor-made and compatible with Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR; lightweight design of hollow, with stainless steel screw, net weight is about 240g;
2. The lens collar is made of high quality Aviation Aluminum, lightweight and solid; precisely machined by world-class high-end CNC turning center, surface anodic oxidation; appearance and exquisite workmanship is much better than similar products made by mold;
3. The lens support is referencing to and modified from Nikon original standard design. Integrated design, non-slip knob is larger, reserved finger position. The inner diameter of the tripod ring is about 79.5mm, the width is about 23mm, with 3M film inside for protecting the lens from scratches, can be freely rotated 360 degrees;
4. The bottom of the lens bracket is 85mm detachable lengthening quick release plate, with 1/4”and 3/8”screw holes and stainless steel studs at the bottom;
5. This lens holder bottom is 39mm Arca-Swiss fit Quick Release Plate, compatible with RRS / ARCA-SWISS 39mm fit ball head, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK.
Compatible with:
Nikon AF-S NIKKOR 200-500mm f/5.6E ED VR Lens
Package Includes: 
1 x iShoot Tripod Mount Ring IS-N250II
Note: The other items in the photos not listed here are for illustrating only, not included.