The Elite Surf Wake Racks are saltwater friendly. They feature a brushed anodized backing plate with black RWA logo medallion and integrated webbed bungee strap with loop. It holds up to one surfboard with a max thickness of 2.75 inches thick and one wakeboard up to 1.15 inches thick. EACH SOLD SEPARATELY Tine Spread 10 inches 25.4 cmWake Tine Gap 1.15 inches 2.92 cmSurf Tine Gap 2.75 inches 6.98 cmMaterial 6061 aluminum Overmolded TPUMounting Hardware 316 stainless steel Salt water friendly