iShoot Lens Collar Tripod Mount Ring IS-TA720A009 Compatible with Tamron SP 70-200mm F/2.8 Di VC USD A009 Bottom is Arca Fit Quick Release Plate Feature for RRS / Arca-Swiss Fit Ballhead Clamp Main features: 1. The lens collar is made of high-density Aviation Aluminum, lightweight and solid; precisely machined by world-class high-end CNC turning center; hollowed-out work processed by Multi-Diamond Cutter finely; 2. The Tripod mount ring surface using vibration polishing technology and multiple anodic oxidation, greatly increased the color uniformity of the metal surface; the appearance and exquisite workmanship is much better than similar products made by mold; 3. The tripod collar is referred to the original factory structure to improve the appearance and function; the inner diameter is about 73.5mm, the width is about 18.5mm, split design, 180-degree quick-lock knob, and the inner contact surface of the tripod ring is pasted with 3M plastic protective film; 4. The bottom quick release plate of the Lens support is about 70mm in length, adopts ARCA-SWISS / RRS 39mm standard fit, and reserved 1/4 and 3/8 screw holes, equipped with stainless steel non-slip screws; net weight is about 165g; 5. Bottom quick release plate is AS standard, compatible with RRS / ARCA-SWISS / PMG / WIMBERLEY / MARKINS / PHOTOCLAM / SUNWAYFOTO / BENRO / SIRUI / MARSACE / ISHOOT ball head of Arca 39mm fit, suitable for iShoot IS-JZ30 / IS-JZ50 / IS-JZ64 / IS-QJ58 / IS-QJ64-FD / IS-JZ60BK / IS-JZ70MFT / IS-JZ80BK. Compatible with: Tamron SP 70-200mm f/2.8 Di VC USD A009 for Canon EF Mount, Nikon F/FX Mount and Sony/Minolta Alpha Mount Note: Cannot be used for other lenses Package Includes: 1 x iShoot Lens Collar IS-TA720A009 for Tamron SP 70-200mm f/2.8 Di VC USD A009 (Note: The other items in the photos not listed here are for illustrating only, not included)