12-Needle sizes (3, 4, 5, 6, 7, 8, 9, 10, 10.5, 11, 13, 15) 5-cord sizes (16, 24, 29, 36 and 48-inch ) 60 combinations Perfectly shaped tapered tip and silky finish of the needle surface Customized case for easy selection and storage, needles and cords. 12 tip sizes - No. 3 (3.25mm)-15 (10.0mm). 5 cord lengths - 16 inch (41cm), 24 inch (61cm), 29 inch (74cm), 36 inch (91cm) & 48 inch (120cm)