ITEM NAME:Telephoto Zoom Len Bracket Camera Support QR Plate Holder Description: A screw hole connected fast loading plate is about 27mm, three damping joints, foldable, retractable screw is about 30mm. Long plate holders adopts Arca-Swiss standard interface. Compatible with SWISS / KIRK / Wimberley / MARKINS / SUNWAYFOTO / -RRS / ARCAKangrinpoche / BENRO / SIRUI platform. Installed between long-focus lens and camera body, sharing the weight of the camera mount to protect long-focus lens and camera mount from damage, but also increase stability. Aluminum materials, CNC precision machining, surface oxidation treatment, wear-resistant. Specification: Material: Alloy Size: Approx.40x40mm/ 1.57 inch Package Includes: 1 Piece Long-Focus Lens Support Holder Note: Please allow 0.1-0.5 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you. SKU: ALU0035543877008263.1 Piece Long-Focus Lens Support Holder. A screw hole connected fast loading plate is about 27mm, three damping joints, foldable, retractable screw is about 30mm. Long plate holders adopts Arca-Swiss standard interface.