iShoot IS-3950MFT Quick Release Plate Converter Clamp Adapter For 39mm RRS / Arca-Swiss Fit Quick Release Plate Converts to fluid head for Manfrotto / Gitzo tripod and other brands,Gear head, three-dimensional (3D) head or ball head with 50mm collet Features: 1. Made of aviation aluminum, precision CNC machined, lightweight hollow design, surface ground, polished and anodized; 2. The volume is about 120x50x12mm, the net weight is about 65g, and the inner diameter is about 39mm; 3. After test, compatible with RRS / Arca-Swiss standard quick release plate under 39mm (including 38mm), converted to use for Manfrotto, Gitzo and other brands' fluid head, gear head, head three-dimensional (3D) or ball head using 50mm quick release plate; 4. Compatible with Arca-Swiss Fit 39mm Quick Release Plate including RRS / PHOTOCLAM / GITZO (ARCA fit) / MANFROTTO (ARCA fit) / WIMBERLEY / MARKINS / SUNWAYFOTO / KANGRINPOCHE / BENRO / SIRUI / MARSACE / ISHOOT; 5 . Compatible with tripod head/clamp including Manfrotto MVH500 and MVH700 series fluid head, 500/501/577/701 wide clamp with 50mm inner diameter; Gitzo G series, GH series, 1780/1781/2780/2781 tripod head using 50mm inner diameter wide clamp. be horizontal when installing or removing the quick release plate in case the camera is dropped. Package including: 1 x iShoot IS-3950MFT Quick Release Plate Clamp Adapter(Other items in photos not listed here are illustrative only, not included)