This assortment contains 14 assorted white single channel clasps with an "H" extender. This "H" Extender clasp kit includes 1 each of sizes: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 and 16 mm. Clasps are supplied in a compartment box, labeled for easy reordering. Refills are available.