Dimension: 32*21*40cm / 12.5*8.5*15.75 in. The capacity of the Yarn Storage Organizer is 25 liters can store 30 pcs yarns of 50g. Roomy Capacity:The crochet/knitting backpack bag is great for larger projects that require numerous balls of wool, which loaded with spacious main compartment for unfinished projects and individual 6 interior pockets with matching holes on the side to prevent skeins of yarn from tangling. Holes are stiff enough so yarn won't pull out and pets can't get in! Convenient Pockets: 2 inner pockets with elastic straps fit up to 14” knitting needles and 3 clear PVC inner pockets allow you to put your daily necessities.