[ 2 Unique Design ]: 1. The ladder hooks for roof design four mounting holes you can select the appropriate mounting holes ,according to the ladders with different spacing steps, in order to achieve the desired effect, Attaches to any style Compatible with round or D rung styles little giant ladder accessories extension ladder. 2. Rubber Grip T-Bar for Damage Prevention Compatible with round or D rung styles,Two hooks must be used per ladder. [ Heavy Duty Material ]: Our ladder hooks Ladder Stabilizer for roof Made of heavy-duty steel with water and rust-proof finish, this ladder accessories for roof features extreme strength and superior durability ensuring safety while climbing on the roof. Service long-term life.