22″ metal frame designed specifically for our QG LED system. Put a combination light with a flowering light or a blue spectrum, you can dial right in to your light spectrum with the QG Modular LED System. 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.