Specifications:

Golden A5 20mm (including screws)

Golden A6 20mm (including screws)

Golden A7 20mm (including screws)

Golden A6 exotic 25mm (including screws)

Golden A6 15mm (including screws)

Golden A6 30mm inner diameter (screws included

Golden A7 30 inner diameter (including screws)

Golden A9 20 inner diameter (screws included

A5 puo 20 holes (including screws)

(A8 20) hole position and a8 15 inner diameter are universal