Twelve numbered pockets Secure flap on each pocket to hold needles US Numbers: 3, 4, 5, 6, 7, 8, 9, 10, 10.5, 11, 13, 15 Metric Numbers: 3.25, 3.5, 3.75, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10 Closed: 8.5" w x 8.5" h. Open: 8.5" w x 18.5"h. Taffeta Silk and Poly Silk Got circs? Store them in this case and you'll thank us. (Send thank you letters to Attn: Customer Service Manager). Store multiple sets of circulars in each NUMBERED pocket. We can't tell you how many sets because it depends upon the needle size and the length of your cords. Just know it is more than one and less than ten in each pocket. Of course, if you were really organized you would have a separate case for each cord length or type of needle (bamboo, metal, plastic). The security flap on each pocket can be folded over the top or tucked in like an envelope. Includes a small zip pocket behind the sixth pocket for storing notions or extra funds for a latte. Interior photo shows example, the actual color of this case inside is purple.