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