6 sizes are available for most graphite shafts and steel shafts. Size 0.5″ graphite – inner diameter: 0.5 inches and outer diameter: 0.6 inches Size 0.515″ graphite – inner diameter: 0.515 inches and outer diameter: 0.6 inches Size 0.53″ graphite – inner diameter: 0.53 inches and outer diameter: 0.62 inches Size 0.545″ steel – inner diameter: 0.545 inches and outer diameter: 0.6 inches Size 0.56″ steel – inner diameter: 0.56 inches and outer diameter: 0.6 inches Size 0.575″ steel – inner diameter: 0.575 inches and outer diameter: 0.6 inches Package Include: 10pcs Extender High-strength special custom plastics ensure sufficient strength while allowing the extender to be easily sanded. The maximum length of this product is 2 inches, you can easily cut to the size you need. Spiral TIP end, increase the friction of the shaft extender and the shaft. On Apr 3, 2024 at 03:44:16 PDT, seller added the following information: