Features:This lens support is designed as standard size that fits 15mm rod diameter and can be installed on 60mm rail support.A rubber pad on the support surface protects your lens from starching， shaking.A vertical slot can be adjusted the support lens height to get best support.It's made of aluminum alloy and hard anodized in matte black finish， firm and durable.5D2 DSLR kit accessory， telephoto lens bracket， universal type for rod support DSLR rig.Strong and convenient， easy to use.Specifications:Material: Aluminum Alloy (body)， ABS (knob)Fit rail distance: 60mmFit rail diameter: 15mmItem weight: 104g / 3.7ozPackage size: 12.5 * 7.7 * 3.5cm / 4.9 * 3.0 * 1.4inPackage weight: 134g / 4.7ozPackage List:1 * Lens Support for Rod Rail System