Double Spool Holder for Printrbot

This is a double spool holder for the Printrbot Simple Metal. Ever had problems switching spools on a traditional spool holder? Hate having to juggle spools mid-way through a print? These problems and more are solved by this Double Spool Holder!

It can be used with the Printer Simple Metal 3D printer with the metal handle -or- without the metal handle (see images.)