HiyaHiya Steel Interchangeable Needles feature keyless screw on connections and swivel cables. The small set includes 7 sets of tips in sizes from 2-8US (2.75-5mm) Each set includes a practical and portable brocade case, needle tips and 4 different cords-16", 24", 32", 40"). Assorted fabrics. Tip length is approximately 4 inches.