JIF 9.5" Aluminum Replacement Ladder Standoff ERM9.5 - https://www.boatpartsforless.com/shop/jif-emergency-reboarding-ladder-eom/
JIF 4.5" Stainless Steel 316 Replacement Ladder Standoff ERM S4.5 - https://www.boatpartsforless.com/shop/jif-4-5-stainless-steel-316-replacement-ladder-standoff-erm-s4-5/
Souped-up ladder standoff. I came up with an extended-standoff setup to distance me from the house and to make working conditions safer. Mine backs me away far enough that I can work on gutters without the ladder leaning against the gutters.
Souped-up ladder standoff uses PVC pipe.
Extension ladder standoff arms - Cetpo Pictures Gallery
Ladder standoff bracket | ladder corner standoff | Ladder stay demo
Replacement Ladder Standoff
09010 Ladder Standoff Stabilizer
Garelick/EEz-In 99000:01 Marine Aluminum Ladder Standoff