Thank you for viewing. This is a cinema rail from Really Right Stuff (RRS). Arca-Swiss compatible. Purchased from the US official website ($120). ■ Product Name RRS MPR-Cinema 270mm Rev B (Multi-Purpose Cinema Rail) ✔ Versatile bar ideal for setting up equipment for video production and photography. ✔ Arca-Swiss type compatible, allowing for flexible attachment of clamps and accessories. ✔ Multiple 1/4″-20 and 3/8″-16 threaded holes allow for efficient setup of monitors, lights, microphones, etc. (Features laser-engraved scales for precise and repeatable settings) ■ Specifications ・Length: Approximately 270mm (10.6 inches) ・Double dovetail design on both sides (top and bottom) ・Numerous mounting screw holes ・Lightweight and highly rigid aluminum alloy construction ■ Condition This is a used item, so there are minor scratches and signs of use, but there are no issues with functionality or use. This is the perfect item for setting up video equipment and custom rigs! Please take advantage of the high-precision, durable rail that is characteristic of RRS.