The PLKB G10 Kiteboarding Fins 45mm (set of 4) are made from super strong G10 material for durable quality. The Fins are asymmetrical shaped to create more upwind performance and grip due to the wing shaped profile. 45mm is perfect for the PLKB Shepherd board, a more playful Patrol board or a good choice for a Capital board with more grip. 45mm fins is a balance between riding with grip and playful riding easier to switch from heel- to toeside. They come complete with 8 screws.