Downspout Extension Flip-Up Hinge for 3x4 Downspout (3X4 A, WHITE-TAB) Hinges for 3X4 downspout extensions are made of .040 Galvanized steel then coated with a baked on powder coated finish (the toughest paint available) Each hinge comes with a Metal Latch or Velcro Tab as shown in the picture The Metal Latch or Velcro Tab keeps the extension up when raised and fastened Hinges come with installation instructions & screws. "A" STYLE COMES OUT AT YOU. "B" STYLE GOES TO THE RIGHT OR LEFT Proudly Made in the USA!!!!!