Gutter Extension Hinge 2 Pack | Downspout Flip Up Hinge for Rectangle & Square Downspouts | No Drill Easy DIY Install, Paintable, Prevents Foundation Damage, Durable Metal Construction

The hinge worked well, but the screws were not self-tapping, so drilling was required. Also, the rivets weren't tight enough to hold the downspout extension up at vertical, so I had to rig a method to hold it in place when raised.