Snap Spool. 12 weight. 100% Long Staple Matte Finish Mercerized Egyptian Cotton. For Hand Embroidery, Machine Embroidery and Machine Quilting. Color changes every 2 1/2 inch to 5 inch. Solid Premier Quality, long staple, highly mercerized Egyptian cotton. Has a matte finish to create a soft, warm, natural look and feel. Sulky 12wt cotton is used for a more emphatic look. One strand of 12wt cotton petites equals two strands of the typical embroidery floss.