This is a multi-color collection, which includes 90 colors: 36 solids (EZ01-36) & 54 variegates (EZM01-54) Size 3 (30yd spools) Spoil yourself with the most popular Perle cotton on the market. Designed thoughtfully for hand embroidery and small-scale designs, varigations are extra short, allowing for frequent color changes. Free from lint with a little extra twist has this thread stitching through fabrics and fibers like a dream. The one blue bobbin that looks fat in the bottom tray, I had tried to use for a Crochet project. After a few stitches, I could tell this wasn't going to work for my project, so I undid those and rewound the bobbin.