A true dinosaur spectacle: The dark gray pencil case from Dino World features a large T-Rex design printed on neoprene at the front, which lights up and sparkles (eyes, mouth, stars) at the push of a button for about 15 seconds. The three separate compartments of the pencil case are fully stocked with 18 colored and felt-tip pens, 2 pencils, an eraser, a sharpener, a ruler, a glue stick, scissors, and a small Velcro pouch. The batteries for the LED lights are replaceable.