A fun, squishy, glow in the dark dino-who could ask for more!? You can twist, squish, and stretch this dinosaur in every direction for a fun hand strengthening activity. This squishy stretchy dinosaur is super flexible. Each is filled with tiny beads and measures approximately 7 to 8 inches long. Your glow in the dark prehistoric reptilian monster comes one of six different species perfect for your junior paleontologist - stegosaurus, tyrannosaurus, triceratops, ankylosaurus, dimetrodon or brachiosaurus. Yours will be selected from our in-stock supply. If you purchase more than one we will send a variety Great for providing an extra element of action to your prehistoric diorama & play action! All "glow-in-the-dark" products contain phosphors and have to be "charged" in order to attain a good glow. A phosphor is a substance that radiates visible light after being energized. After being exposed to light, most items will glow for at least 10 minutes. You may need to be in nearly complete darkness to notice it. The brighter the light and the longer the exposure, the better and longer the item will glow. Recommended for ages 5 and up.