Roof Hook Straps are made of .060 aluminum and are designed for use with the Brute® bracket for applications requiring the gutter to be attached to the roof. The hook goes down through the keyhole nearest the back of the hanger and then back up through the keyhole towards the front of the hanger to “lock” in the strap. Then the hanger can be attached to the gutter and the strap can be attached to the roof. Roof Hook Straps can be used with any Brute bracket.