Feature: 1. Rubber Grip T Bar: The rubber grip T bar prevents damage to roofs, making it suitable for asphalt shingle roofs, ensuring safety during use. 2. Versatile Application: This ladder hook is compatible with most ladder styles, suitable for round and D shaped wooden, fiberglass, or aluminum ladders. 3. Easy Installation: Installation is a breeze with our ladder roof hook instructions. Ensure to tighten the wing nuts on both hooks to secure the ladder firmly in place. 4. Dual Hook Design: The ladder roof hooks fit over the top two rungs and secure to the roof edging, providing balanced support. Each ladder requires two hooks for excellent stability. 5. Heavy Duty Construction: Crafted from heavy duty steel with a water proof and rustproof coating, this rooftop ladder stabilizer offers exceptional strength and durability, supporting up to 500 pounds. Specification: Item Type: Roof Ladder Hook Material: Steel Application: The ladder hook is extremely robust and suitable for most ladders. Suitable for round and D shaped ladder styles of wooden, fiberglass, or aluminum single or extension ladders. Compatible with most ladder accessories and most ladder accessories.. Package List: 2 x Wheels 2 x Ladder Hooks 4 x Connecting Plates 2 x Handle T Bar 4 x Rubber Handle Covers 23 x Screws 24 x Nuts