Feature●1.The lens color is adjusted for Sigma 150-600mm f/5-6.3 DG OS HSM Contemporary Lens and can be used with Sigma 150-600mm F5-6.3 DG OS HSM Sport Lens●2. The inner diameter of the tripod mount ring is about 80.5mm, the width is about 22.5mm, the film is 3m inside, the lens will interfere with scratches. Net weight is about 170g●3. The bottom of the tripod collar has a 75mm length arc fit quick release plate, which can be used directly with 39mm Arca-Swiss Fit Tripod Ball Head, Panoramic Head, Clamp. More practical than a lens color without a QR plate●4. The lens supports the lens to fix the lens directly●5.The tripod ring is made of aviation aluminum, CNC precision machined, hollow weight reducing design, polished anodized finish. The appearance and exquisite workmanship is far superior to similar products made by moldDescription iShoot ISOUT Lens Color Support, CNC Machined Tripod Mount Ring for TS-71 Sigma, 150-600mm F/5-6.3 DG OS HSM Contemporary Lens, Bottom is ARCA Fit Quick Release Plate.