Material: Fiberglass| Box Type: One Tab (Futures) |Two Tab (FCS) | Size: Large | Side Fins: Outside/Inside: Height: 4.73” Base: 4.64” Area: 15.98" | Centre: Height: 4.49” Base: 4.63” Area: 15.32″ | Warranty: All RYD fins are guaranteed for one year against factory and material defects and workmanship | Care: Rinse fins with freshwater after your surf to flush away sand which may damage the fins or fin box. Always remove your fins and place them in a fin wallet when travelling.