Features: Made of high quality aluminum alloy, CNC precision machining, with smooth surface, durable and lightweight. Surface oxidation treatment, anti-friction anti-corrosion. With embedded bubble level on the quick release clamp, can conveniently adjust the levels when shooting. Knob-type design for strong universality. Can conveniently adjust the width of clamp from 38mm to 45mm. High quality anti-slip rubber pads on top, increasing the friction between your camera and the QR plate for camera security. Equipped with 1/4 to 3/8 adapter screw, can mount the clamp on most brands of tripods, ball heads, brackets and so on. With 1/4 screw mount, allows users to quickly and easily attach various cameras on the quick release plate. With location notches on the quick release clamp, can prevent your camera from accidentally dropping. With an attachment loop on the quick release plate, allows the photographer to connect a sling-style shoulder strap. With a strap buckle so that easy to carry. Adopts for Arca Swiss standard, compatible for Arca Swiss standard quick release plate, such as for RSS, for Arca-Swiss, for Kirk, for Markins, for Sirui, for SUNWAYFOTO, etc. Also compatible for Manfrotto 200PL quick release plate.