Precision Hat Cast On Chart Tool: Accurately calculate the number of stitches to cast on based on head circumference and gauge for a perfect fit every time. Versatile Quick Gauge Ruler for Knit and Crochet: This easy-to-use tool functions as a quick gauge ruler for both knitting and crocheting, making it a must-have in any crafter's toolkit. Handmade Wooden Kit: Crafted from high-quality wood, this 3.5x5 inch tool is durable and portable, featuring a stylish design that adds charm to your crafting space while keeping measurements organized. Comprehensive Hat Size Guide: The embedded Hat Size Guide helps determine needle sizes and cast-on numbers, ideal for both beginners and experienced knitters looking to streamline their projects. Ideal for Knitting Beginners: This knitting ruler and gauge tool is a thoughtful and practical gift for knitting enthusiasts, enabling them to create well-fitting hats and knitted items with ease. Color: As Shown Material: Wood Package Contents: 2 * Hat Cast On Chart Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.