【Wide Compatibility】 This quick release plate compatible for Manfrotto 501HDV, 503HDV, 504HDV, 701HDV, 500, 577, 519, 561, Q5, 500AH, etc. 【Easy to Install】This P200 connect adapter can be used with tripod, rail, stabilizer and different devices for Photography. Fast switching between different devices without replacing the quick release assembly. 【With Bubble Level & Locking Knob】 Equipped with bubble levels, easy to adjust the levelness. The locking knob prevents slip, enhances the safety and fall prevention of quick release, to keeps the camera safe. 【Premium Quality】Made of high-quality aluminum alloy, the surface of the product is resistant to friction and oxidation, load resistant,with excellent durability. ☆ Using rubber pad to prevent wear and protect the camera from scratches. 【Package List】Including a QR plate and a QR clamp adapter. Holes on the clamp adapter ensure the possibility of connecting more devices.