This is a mash up between my telescopic spool holder and Chri's removable spool holder.http://www.gyrobot.co.uk http://www.facebook.com/gyrobotukIf you already have my telescopic spool holder then you need to print the dovetail mount and removable mount.If you already have Chri's dovetail mount then you need to print off the removable mount and extension.You will need a little bit of support for the removable mount, this can be trimmed off easily until a tight fit is achieved in the dovetail mount.I have included Chri's dovetail mount for completeness.