Size: 0.5mm Length: Approx. 547 Yards for each roll, 2 rolls in total Color: White and Black Suitable for most of the sewing machine, great for shirring, smocking and gathering. Strong and Durable Stretchy String; Coated with fabric, strong, stretchy, durable and not easily to unravel or break; Soft and smooth, high tensile strength, good luster, strong wear resistance. Versatile Elastic Thread: Great for sewing purpose, like shirring, creating raffles, gathering, knitting, ribbing, smocking, crocheting, zigzag or decorative stitching; or used as thin stretchy string for jewelry making, which applies for seed beads, beading, bacelet making and crafting Approx. 500 meters of each roll, size approx. in 0.5mm This elastic sewing thread suitable for most of the needles and sewing machines. Color: one roll of black and white