2 PCS Marine Boat Bimini Fitting SS316 CONCAVE Base Deck Hinge 7/8X2 22X50.8MM This is a set of 2 Concave Base Deck Hinges for Bimini Top or Canopy Deck Fittings that is formed and polished from type 316 stainless steel for appearance and durability. It has a mirror-polished surface. The dimension of this hinge is 7/8" X 2", which is 22.2mm X 50.8mm. The stainless steel surface provides maximum corrosion resistance and durability. We also have different measurements for deck fittings. Check out our store to find out more about the deck fitting that suits your application!