With standard 1/4 "threads. Scale plate and built-in bubble level. Very convenient for use. Jaw can be opened from 37mm to 42mm, suitable for any Arca style plates such as RRS, Wimberley Jubu Design, Arca Switzerland, Kirk, Maikins, etc
Features: Made of aluminum alloy, very durable and sturdy Standard 1/4 "threads. can be directly mounted on 1/4 'thread of devices Fast loading base with antiskid lock function With scale scale and built-in bubble level, very convenient for use Jaw can be opened from 37mm to 42mm. suitable for any Arca style quick release plate.