"PX6 6"" Arca Compatible dovetail telephoto lens balancing plate, by ProMediaGear is manufactured from solid 6061-T6 Aluminum in our factory outside Chicago, IL USA. The plate is fully compatible with Arca Compatible Gimbal Carriages and Ball Heads on the market today. Our Updated PX6 Plate feature multiple Lens Foot position screw stops to securely fit many lenses on the market today. Each side of the balancing plate is laser etched with precise measurements for accurate and repeatable adjustments. Underneath, 2 safety stop screws give you peace of mind while shooting. Arca Compatible Dovetail Plate Multiple Anti-Rotation Lens Foot Position Screws Recessed 1/4-20 Mounting Screws SS2 Quick Release Adapter Port Made in the USAAdditionally, the PX6 features our #SS2 Quick Release Adapter Port designed to allow a convenient and secure method of carrying your lens and camera. Each PX6 comes complete with (2) 1/4-20 mounting screws and 5/32 Allen Key. SS2 Quick Release Strap Port The SS2 plug simply inserts into specially made steel port on Bracket Plates. Once secured there is no way to remove it unless top button is pressed. The PMG #SS2 Quick-Release Shoulder Strap features a proven, industrial strength, locking system that allows the receiver to be flush with the camera mounting plate. The strap engages without any screws or adapters that may loosen during shooting. This allows nothing to get in the way of your cr"