Compatibility Ladder stabilizer, Wing Span/Wall Ladder Standoff is compatible with most aluminum and fiberglass articulating ladders. Adjusts to the width of the ladder, the stabilizer ladder spacing is approximately 38 inches long x 14 inches wide x 4 inches high. Rated to carry 375 lbs. Increased stability when working in the extended position. Upgrade for more stabilityWall Standoff Ladder stabilizer Both ends come with professional rubber pads to prevent slippage and protect the wall from scraping. Make the ladder more stable, will not damage the wall paint and roof tiles Sturdy and durableThe wall ladder bracket is made of high quality forged steel with smooth surface and no rusting. Replaceable extra heavy-duty rubber heads at both ends help prevent damage to metal roofs Easy to InstallEasy to connect by following the included user guide to install Roofing Ladder Tools More firmly mounted on the extension ladder, and it is also easy to remove.