Set includes interchangeable sizes 3 (3.25mm), 4 (3.5mm), 5 (3.75mm), 6 (4mm), 7 (4.5mm), 8 (5mm), 9 (5.5mm), 10 (6mm), 10½ (6.5mm), 11 (8mm), 13 (9mm), 15 (10mm), and 17 (12mm), brown nylon cables for making circulars of lengths 24"(x2), 32"(x2), and 40"(x2), 12 end caps, 6 cable keys, 20 stitch markers, set of magnets, set of cable connectors, and a pen in a premium needle case with pattern holder in denim and beige finish.