The GRIPPER 3 Black Shaft from UNICORN are black colored shafts consisting of nylon with a ring and are available in 2 sizes MEDIUM: Length 44.20mm, Weight 1.03 grams. SHORT: Length 34.40 mm, Weight 0.78 grams. You can easily replace shafts with every dart. They are available in a variety of sizes to suit your dart in length and feel. Sizes: XX-Short / Micro, X-Short, Short, In Between, Medium & Long. In addition, they also consist of different materials: nylon, carbon, plastic, metal, etc. In short, you can adjust your dart to your own taste and feeling by using different types of shafts.