Single Layer Storage: The height of the bag is 4 inches, fit most small yarn balls (3 inches in height). Designed to storage only one layer of yarn, view all the yarn balls at a glance, no more dig into them! Large Capacity: 3 Bags. Each bag measures: 11.75x15.75x 4 inches. Store a large amount of yarn balls, colored threads, crochet hooks and other knitting accessories, keeping your crochet supplies in order. Clear & Visible Design: The yarn storage bags are super clear, which easier to find what you want without open the storage bags. Water Proof and Dust Proof: Secure zipper lock. Sturdy PVC material is water proof and dust proof, prevent the yarns from moisture and dust. Prefect storage bags for cotton yarns, acrylic yarns, wool yarns and more. Flat Bag: Use individually or stack in a closet to save space. Can be easily store under bed, in the close or in the garage. & Sturdy Material: The yarn bags are made from heavy-duty PVC material for excellent toughness as well as resistance to be punctured. The zipper closure protects against dust and in sects which keep the yarns inside clean and tidy. Portable Bags: The storage are equipped with 2 rope handles for easy mobility. (without silk thread) Color: Black & Transparent Material: Pvc Package Contents: 3 * Yarn Storage Bags Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.