Lantern Moon interchangeable needles are made from ebony, one of the world's most valued woods. They are lightweight with a liquid silk finish, and the brass connectors are plated with 24k gold for a snag-free experience. Cords are memory-free nylon-coated stainless steel, with a swivel and fixed option provided for each length. All sets come in a zippered, embroidered silk case. The Heirloom 5" Interchangeable set includes: 10 sizes of 5" Ebony tips (US 2.5, 3, 4, 5, 6, 7, 8, 9, 10, 11) 1 each 24”, 32” and 40” nylon-coated stainless steel fixed cords 1 each 24”, 32” and 40” nylon-coated stainless steel swivel cords 2 tightening tools 4 wooden end caps 5 colorful tassel stitch markers The Legacy 5" Interchangeable set includes: 5 sizes of 5" Ebony tips (3, 5, 6, 7, 8) 1 each 24” and 32” nylon-coated stainless steel fixed cords 1 each 24” and 32” nylon-coated stainless steel swivel cords 2 tightening tools 4 wooden end caps 5 colorful tassel stitch markers The Ancestry 4" Interchangeable set includes: 9 sizes of 4" Ebony tips (US 2.5, 3, 4, 5, 6, 7, 8, 9, 10) 1 each 16” and 20” nylon-coated stainless steel fixed cords 1 each 16” and 20” nylon-coated stainless steel swivel cords2 tightening tools 4 wooden end caps 5 colorful tassel stitch markers The Heritage 4" Interchangeable set includes: 5 sizes of 5" Ebony tips (3, 5, 6, 7, 8) 1 each 16” and 20” nylon-coated stainless steel fixed cords 1 each 16” and 20” nylon-coated stainless steel swivel cords 2 tightening tools 4 wooden end caps 5 colorful tassel stitch markers