: Extension ladder stabilizer for roof suitable for use on ladders with a width of between 10.24 and 14.17 inches between two rungs :2024 patented model new upgraded roof hooks,made of heavy-duty steel,extra 4 reinforced steel core,comprehensively improve the load-bearing capacity of the steel ladder stabiliser,the load capacity about 500lb. Surface is electrophoresis process,the paint is more solid and rust-free