Two 22″ metal frames designed specifically for our Living Herb Modular LED system. Put a combination light with a flowering light or a blue spectrum and you can focus right in to your specific light spectrum needs. Simple to assemble, everything clips or screws together within minutes and your modular LED system is ready to go. Updated version is made of metal and is much more durable. Price is for metal framework only and does not include the LED lights in the pictures.