YOST 5" Copper Hinged gutter guard is made with a heavy duty copper mesh and is used over a 5" K style residential gutter. It is easily installed with two stainless steel clips that clip onto the front of the gutter. Just clip to the gutter and then lay the Hinged gutter guard over the first course of shingles. Allow the hook on the clip to go though the wire mesh and slightly bend the hook toward the roof to hold the gutter guard securely in place