Diameter: 8mm (~5/16")
Length, grip: 35mm (~1-3/8")
Length, overall: ~40mm (~1-9/16")
Head, flat to other side: ~10mm (~3/8")

In around 2012 Catalina started supplying the boats with Seldén masts and standing rigging. Current production Capri 22s (hulls 1259 and up), Catalina 22 Sports (hulls 15759 and up) and Catalina 250s (hulls 1004 and up) are now supplied with Seldén rigs. This part is only for boats with Seldén rigs.