Lizbeth crochet cotton size 10 is equivalent to a DMC Pearl cotton size 5 and is considered bedspread weight. Excellent for Crochet, Tatting, Knitting, Hand Quilting, Embroidery, Cross-stitch, and Needlepoint projects. Each ball is 25 grams and approx. 122 yards. Please be aware the size (thread thickness) being purchased. A description is below of the different sizes for the Lizbeth brand. Brand site: hhtatting.com Recommended: Crochet Hook: 6, 7, 8, B-1 (1.6-2.25mm), Tatting Needle: Size 3-0 or 5-0, Knitting Needle: 0-1 US (2mm-2.25mm) Lizbeth is a premium crochet cotton thread great for all needle art projects! This crochet cotton is made of 100% Egyptian cotton and is a 6-cord cordonnet available in a large assortment of solid and multi colors. It is a high quality thread that is shiny with a rich and vibrant color. It is super-combed, gas-singed for outstanding body, mercerized, and colorfast. Handy Hands Lizbeth threads are available in sizes 3, 10, 20, 40 and 80.