KETTLER utilizes an exclusive Electrotherm® coating technology on all of our wrought iron furniture. This finish is three times thicker than a conventional powder coat. The Electrotherm coating creates an extremely smooth finish in combination with smooth weld points and resists scratching, peeling, fading and chipping. Another advantage is that your wrought iron furniture will remain approximately 20% cooler after long sun exposure than conventional paint finishes. Many round, square, and rectangle sizes are available.