8Sinn Arri NATO Rosette 28mm Mount Key Features: – 360-degree rotation – 28mm diameter – M6 center opening – Aluminum made – Part of the quick-release system   Mounting adapter for Arri standard accessories like holders, top handles, etc. This product is a part of the quick-release system when mounted on separate or built-in Safety NATO Rail. Dimensions: Length: 34mm Height: 18mm Width: 28mm Weight: 24g Set includes: 8Sinn Arri NATO Rosette 28mm Mount