Bobbin and spool management system

A multi-cavity spool holder having, on a first face, a multiplicity of lower end receptacles each adapted to receive a first end of a cylindrical supply spool ranging from about 19 mm up to about 42 mm in diameter, each lower end receptacle having an upright post positioned therein adapted to enter a central throughbore in the cylindrical supply spool having a diameter of from about 6.9 mm up to about 7.8 mm whilst a second face has a plurality of dual level upper end receptacles formed therein, each upper end receptacle having an upper wall comprising a lowermost portion of one of the lower end receptacles, a shoulder being formed in each upper wall approximately 12 mm beneath an upper surface of the dual level upper end receptacle forming a bobbin receptacle adapted to receive a bobbin having an outside diameter of up to 26 mm and a height of from 8.6 up to about 12 mm and a retention portion adapted to receive a second end of the cylindrical supply spool having a diameter up to 42 mm when the bobbin is mounted upon the second end of the cylindrical supply spool using a bobbin topper interpenetrating a throughbore in the bobbin and the central throughbore in the cylindrical supply spool;

• wherein the multi-cavity spool holder is comprised of a translucent polymer or a transparent polymer.