The Picot Gauge Embroidery Tatting Craft Measuring Tools come in 5 different sizes: 3mm, 5mm, 7mm, 10mm, and 13mm. These tools are perfect for measuring picots in crochet, tatting, and other crafts. Made of durable material, they are ideal for accurately measuring and creating picots in your projects. Perfect for any crafter looking to add precision to their work.