BT Classic Synthetic Hair Color Ring includes the following color swatches:
1B, 2, 4, 6, 8, 8A, 10, 10A, 12, 12A, 14, 14A, 16, 17/101, 18, 18/22, 18/26, 22, 23A, 24, 24/14, 24/18T, 26, 27, 27/22, 30, 32, 33, 34, 38, 51, 56, 60, 60A, 101, 223, 234, 263, 637T, 1870, 3327T.

With this color ring, you will always know how a specific color looks like. Never second guess yourself and get the color that truly fits your need.