Superior Threads Metallic #40 Embroidery Thread 500 yds Spool; Set of 25 colors 101-01-SET Price is for a Set of 25 Spools 500 yards of Superior Threads Metallic #40 Embroidery Thread; 1 spool each color in this thread brand Metallic is made from Proprietary Layered Polyester Ideal for embroidery, quilting, and decorative stitching; the only metallic thread that is guaranteed to work Home Machine: #90/14 Topstitch; set upper tension to 1.0 Longarm Machine : #18 (MR 4.0); loosen top and bobbin tension