These shafts are good material, and they are a nice replacement and color assortment for the old ones. Thread surface for non-slip and easy to hold. Made of aluminium alloy materials, standard screw thread, perfect for both steel tips or tips. Features -Color:Assorted Color -Material:Aluminium alloy -Size:4.50X0.30X0.30cm/1.77X0.12X0.12in - Fashionable and beautiful, unique shape of these Thread Shafts can attract many people's eyes. - Adoption of simple and convenient design, these Thread Shafts are durable, not easy to tear. - Small and lightweight, portable for you to take it anywhere, share Thread Shafts with your friends. - Suitable for most people, darts lovers or guys who like competing. This Thread Shaft is very useful. - Manufactured with aluminium alloy material, just rest assure to enjoy the process of tossing . Package list: 30 x Shafts