The Original Softouch Bumpers© are designed to enhance ladder stability and prevent sliding, providing added safety during use. Compatible with all 1 1/2" square tube ladder stabilizers, these bumpers will not harm the roof shingles, or the wood and vinyl siding. Durable polymer engineered, they can withstand extreme weather conditions and UV rays, as well as temperatures. Material is... https://laddersafetyrails.com/products/original-softouch-bumpers