Bisley drawer inserts for bobbins

This is a drawer insert for the Bisley 5 drawer steel filing cabinet, designed to hold bobbins of thread for cross stitch or embroidery.

The insert is split into two pieces so it can be printed on smaller printers. Each drawer needs one each of the front and back pieces.

Each full insert can hold 160 bobbins, which means 3 drawers is _almost_ enough to hold an entire DMC thread collection from 01-3865, except there will be two bobbins left over. The extra file is for a small row of 5 that can be put alongside the main insert in one of the drawers to avoid using an entire fourth drawer for two bobbins.