40 Spool Polyester Embroidery Machine Thread Set Vivid Colors - 500M - for Brother Babylock Janome Singer Pfaff Husqvarna Bernina Machines - 4 Sets Available - Threadart Brand Set of 40 colors of 100% polyester machine embroidery thread on 500 meter (550 yard) spools from ThreadArt. Four different sets. Collect them all, there are no duplicate colors. Vibrant set includes black and white. These spools will fit in on all major brands of embroidery machines such as Brother, Pfaff, Babylock, Melco, Bernina, Singer, Husqvarna and More The set comes packaged in a box suitable for gifting. Individual spools are shrink wrapped. Outstanding shine, tensile strength and color-fastness. Each spool has snap style thread holder on bottom. It holds the end of the thread in place during storage to prevent unraveling and tangles. This thread is 40 weight, the standard for machine embroidery.