Konnwei Lens Tripod Mount Ring Tipod Ball Head Lens Collar Holder for SIGMA 70‑200mm II F2.8 APO Lens

Feature: 1. Applicable Models: This tripod mounting ring is specially designed for SIGMA 70‑200mm II F2.8 APO lens, please check the lens model before use. 2. Cushion Pads: This tripod ring embedded cushion pads to preserve the lens from wear and tear, made of alloy to reduce weight and strong and durable. 3. Main Function: The mounting ring helps to fix and balance heavy or long lens telephoto lenses hanging on the front of the camera to prevent damage to the lens. 4. Precise Processing: Made by precise machining, tight fit is more stable, perfect fit and better protection of the lens, use with confidence. 5. Multiple Size Screw Holes: It has base plate for attaching lenses for Arca for Swiss standard ball head, clamp or panoramic heads, t