Material: Full Honeycomb core glassed in resin | Dimensions: Height: 4.53 Base: 5.83 Area: 20.78 Foil: Flat | 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.