This set contains nine pairs of SmartStix Interchangeable Needle Tips in sizes US 4, 5, 6, 7, 8, 9, 10, 10.5 & 11 (Metric size 3.5, 3.75, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5 & 8.0mm), Four color coded cords in lengths of 24" (60cm), 32" (80cm)-2 Nos. & 40" (100cm) & a set of cord connectors in an uber-chic bag.