Specification Brand : Serounder BulletPoint1 : Good Compatibility: This tripod mount ring base replacement foot has a good compatibility and is suitable for FE200‑600mm F5.6‑6.3G oss lens. BulletPoint2 : Adjustable: This lens collar replacement foot has multiple 1/4in and 3/8in threaded holes on the bottom to adjust the lens and tripod to the proper position. BulletPoint3 : Excellent Aluminum Alloy Material: This metal lens collar stand is made of excellent aluminum alloy material, sturdy and wear resistant, not easy to be damaged, and has a long service life. BulletPoint4 : Skeletonized Weight Reduction Design: This tripod mount ring base is CNC fine machined, skeletonized weight reduction design, polished and surface anodized for durability. BulletPoint5 : Easy To Install: This tripod mount rings stand base is very easy to install, you just need to slide the lens into the base slot and turn the knob. Color : As Shown ExternallyAssignedProductIdentifier : 5056020298045 ItemName : Lens Collar Replacement Foot Tripod Mount Ring, Tripod Mount Rings Stand Base with 1 / 4in 3 / 8in Threaded Hole, for FE200 ‑ 600mm F5.6 ‑ 6.3G ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 12 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : tripod-lens-mount-rings Manufacturer : Serounder Material : aluminum ModelName : Serounderqvy51icprx ModelNumber : Serounderqvy51icprx PartNumber : Serounderqvy51icprx ProductDescription : 1. Good Compatibility: This tripod mount ring base replacement foot has a good compatibility and is suitable for FE200‑600mm F5.6‑6.3G oss lens. 2. Adjustable: This lens collar replacement foot has multiple 1/4in and 3/8in threaded holes on the bottom to adjust the lens and tripod to the proper position. 3. Excellent Aluminum Alloy Material: This metal lens collar stand is made of excellent aluminum alloy material, sturdy and wear resistant, not easy to be damaged, and has a long service life. 4. Skeletonized Weight Reduction Design: This tripod mount ring base is CNC fine machined, skeletonized weight reduction design, polished and surface anodized for durability. 5. Easy To Install: This tripod mount rings stand base is very easy to install, you just need to slide the lens into the base slot and turn the knob. 6. For Arca Type: This metal lens collar stand is an for Arca type for standard for Arca clamps, which allows the lens to be mounted on an for Arca standard tripod, ball camera stabilizer, jig or panoramic camera stabilizer.