This set of 4x Rocker Mount Solar Feet is designed to secure solar panels to a roof with or without penetration holes. It includes a rivet-nut for attaching the panel frame to the foot and allows the use of VHB tape to adhere to metal and fiberglass roofs. For rubber roofs, each foot includes two terminals to secure the foot to the roof with the use of fasteners. We also added zip tie mounts for easy cable management. All hardware is made of stainless steel.