JLWIN Metal Lens Collar Tripod Mount Ring for Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD B061 (X Mount/E Mount), Lens Support Bracket Holder Bottom is Arca-Swiss Fit Quick Release Plate

1.The tripod mount ring mount on the tripod, it helps you fix and balance your tele lens which is heavy or long lens hanging off the front of camera. 2.It features arca swiss bottom plate for attaching your lens to Ball Head, Clamp or Panorama Head of Arca-Swiss standard.There are also 3/8″-16 and 1/4″-20 holes at the bottom for attaching on tripod,light stand,etc. 3. Made of aviation aluminium alloy and CNC precision machining,built-in non-slip patch to protects your lens. 4.Suitable for Tamron 18-300mm F/3.5-6.3 Di III-A VC VXD Lens E Mount and X Mount. 5.Reserved multiple 1/4"-20 & 3/8"-16 thread screw holes at the bottom for attach lens to tripod directly.