I have the wooden thread racks You can now buy the clear plastic covers that fit right over them. I hung mine on my pegboard behind my machine. I have the plastic things that slip onto the spool and hold the matching bobbin and the bobbin ends. Two racks are for regular sewing threads, and one rack is embroidery threads. For my empty bobbins I have small divided cases. One for the Bernina sewing bobbins, Bernina embroidery, one for the Brother sewing,and one for Brother embroidery, each with the machine they go to.