Description: 【Enhanced Stability and Balance】: The tripod mount ring is designed to provide enhanced stability and balance for your telephoto lens, especially when dealing with heavy or long lenses that extend from the front of the camera 【Metal Construction】: Crafted from aluminum alloy, this Lens Tripod Mount Ring Collar ensures durability and strength, making it a reliable choice for photographers seeking sturdy support for their equipment 【Compatibility】: This Tripod Mount Ring Stand Base is fit for most lenses and features a construction that matches specifications, ensuring seamless integration with your existing gear 【Universal Fitment】: With 1/4"-20 , 3/8"-16 threaded Hole, an 86mm ring diameter, and thumbscrew, this Lens Collar Replacement Foot is suitable for various lens models, including for 35-150mm F/2-2.8 Di III VXD (A058), for E Port, for Z Ports as well as for 100-400mm F5-6.3 DG HSM 【Compact Dimensions】: Measuring 3.8cmx7cmx12.4cm with packaging dimensions of 15cmx11cmx10cm, this Lens Collar Support Holder Bracket is compact yet efficient, making it easy to transport while providing essential support during photography   Specification: Material: Aluminum Alloy Color: Black Size Chart: 3.8cmx7cmx12.4cm/1.50inchx2.76inchx4.88inch Package Size 15cmx11cmx10cm/5.91inchx4.33inchx3.94inch Package Includes: 1 Tripod Mount Ring Note: Please allow slightly errors due to manual measurement and different monitors.