The Supergrip Ignite Shafts from HARROWS are made of nylon and contain grip on the body and have a ring on the shaft. These shafts are available in different colors and in 3 sizes MEDIUM: Length 48.00mm. IN BETWEEN: Length 42.00mm. SHORTS: Length 33.00mm. You can easily replace shafts with any dart. They are available in different sizes to customize 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 through different types of shafts.