Leofoto Binocular Rangefinder Rail Kit 23 cm Black. It is primarily designed for rifle sports enthusiasts to mount optics and telemetry equipment but it can also be used in other industries where a stable and adaptable accessory rail is needed. This rail clamp combo features an Arca-dovetail on both sides of the rail which allows for multiple mounting options at any position. The bottom profile enables the rail to be moved to any position in an Arca clamp accommodating a variety of installed equipment. A large top-mounted bubble level allows for quick and easy leveling of the rail for level panning and accurate measurements. The LH-22 Ball Head with Arca Clamp is a versatile and adjustable accessory that is designed to securely hold your spotting scope or camera. With its ability to independently maneuver one of the installed items it is perfect for tracking moving targets. Please note that this is not a standard LH-22 as it is permanently attached to an Arca clamp which allows for easy attachment to the rail. A 60mm mounting plate. Specifications for Leofoto FDM-01 Binocular Rangefinder Rail Kit: Manufacturer: Leofoto Color: Black Features of Leofoto FDM-01 Binocular Rangefinder Rail Kit Aluminum CNC Machining Package Contents: Leofoto FDM-01 Binocular Rangefinder Rail Kit NR-200 Double Arca Long Rail LH-22 Mini Ball Head NP-60S Quick Release Plate Leofoto FDM-01: FDM-01 Binocular Rangefinder Rail Kit 23 cm Black