Durable Material: Embroidery spinning tool is made of high quality acrylic, sturdy and durable, can be used for a long time Size Reference: Thread winding board: 250x230x4.5mm/ 9.45x9x0.17", hole: 8~30mm/ 0.3~1.18", slot: 5mm. flat round board: 56.5x4.5mm/ 2.22x0.17", hole: 3~13mm Winding Instructions: Pass one end of the yarn through the groove, wrap the yarn around the thread winding board, and continue in this manner until finished. Keeps your desktop neat and tidy Multipurpose Application: It can help you store and sort your yarn, you can use it when you do cross stitch, needlework, embroidery, DIY crafts Perfect Gift: The wooden bobbin winding board is a perfect gift for beginners, sewing enthusiasts, perfect for spooling threads, organizing embroidery threads