Filament-Role-Holder

Hi.
I want a Spoolholder where you can easily and quickly change material.
In addition I want no spools on the backside because I didn't have much space on the back and I ever have to move my UM2 when changing material.

So this spoolholder is for all Filamentroles which width is smaller than 80 millimeters.
The hole in the middle should be 52 millimeters or larger. (Brand who fit: REC; Verbatim; Ultimaker; Innofill; Colorfabb; and for sure other which I don't know yet.)

Also the holder