Material: Fibreglass | Dimensions: Outside/Inside: Height: 5.31" Base: 4.8" Area: 19.92" Foil: Flat |Centre: Height:3.25" Base: 7.95" Area: 7.95" Foil: 50/50 | Warranty: All RYD fins are guaranteed for one year against factory and material defects and workmanship | Care: Rinse fin 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.