Alvin Lightboxes provide an artist with and efficient, convenient way to trace and copy material from once source to another. The Alvin Lightbox is constructed specifically for table top use and is easily maneuverable. The aluminum construction is sturdy, yet lightweight enough to be moved into various positions. The Alvin Lightbox-12"X18"X4" 2 Lamps is built for cool operation. Even young artists can handle the Alvin Light Box. Easy to adjust and store, makes this great for any studio. A 78" electrical cord is included with each Light box.