This wallet-sized case is perfect for storing a complete interchangeable needle set. It folds in quarters and closes securely with a button and elastic cord. It contains a zip pocket on the side to store connectors or tools. This case has sixteen numbered tip pockets, as well as two additional unnumbered tip pockets, and 4 cord pockets. It includes space for US Sizes: 2 -17 (2.75 - 12mm). Numbered pockets include: * US 2 (2.75 mm) * US 2.5 (3 mm) * US 3 (3.25 mm) * US 4 (3.5 mm) * US 5 (3.75 mm) * US 6 (4 mm) * US 7 (4.5 mm) * US 8 (5 mm) * US 9 (5.5 mm) * US 10 (6 mm) * US 10.5 (6.5 mm) * US 10.75 (7 mm) * US 11 (8 mm) * US 13 (9 mm) * US 15 (10 mm) * US 17 (12 mm) New (never used). Fabric (linen?) is still kind of stiff since it hasn't been used. Purchased this from JimmyBeansWool.