100 puzzle pieces Glows in the Dark Bright, colorful "talk about" illustrations Reinforces object recognition abilities Develops tactile/motor skills This Puzzle Double series takes the concept of a traditional puzzle to a whole new level! After putting together the 100 piece puzzle, turn off the lights and see a surprise as it glows in the dark 100-piece Puzzle Double! After you put the puzzle together, turn off the lights and the puzzle glows in the dark! Additionally turn the puzzle over and you have a coloring activity The bright illustrations encourage parent-child conversation Each 100-piece puzzle measures a giant 3ft x 2ft ! For ages 3 and up, Manufacturer: The Learning Journey International