Enjoy year round use of your garage with the Matador Garage Door Insulation Kit. Easily transform your garage space into a workshop, rec room or exercise area - in less than 1 hour. The same OEM - grade product used by garage door manufacturers. Panels are a bright white with a high impact polystyrene laminate for an easy wash finish that will give your garage an attractive look. These panels fit into the metal framing on metal garage doors.