The Leofoto BPL Series Arca-Type Double Dovetail Rails are precision-engineered mounting plates featuring a dual Arca-type dovetail profile, making them fully compatible with standard Arca-Swiss style clamps on both the top and bottom surfaces. This dual-sided design provides maximum versatility for mounting and balancing equipment in tripod or support systems, making them ideal for spotting setups, optics platforms, and other outdoor applications where stability and adjustability are critical. Available in three lengths, each rail maintains a consistent 38mm (1.50 in) width for universal Arca compatibility: BPL-200 - 200mm (7.87 in) length BPL-320 - 320mm (12.60 in) length BPL-450 - 450mm (17.72 in) length An integrated bubble (spirit) level is built into the rail, allowing for quick and accurate leveling in the field-ideal for spotting, outdoor observation, and technical alignment tasks.