Spring mechanism easy to pop up the thread
Color: silver/silver+golden
up bolt thread: M8, M16
Suitable for most standard accessories
Material: zinc alloy, brass
Diameter: 6.6cm/3.52cm
Thread size: M8
Seal ring: 3.95cm/3.7cm
up height: 3.7cm
High-quality brass material is not easy to rust
Closed height: 2.8cm
100% Brand new and high quality.
Features: