Edushape Marbulous Glow in the Dark Marble Run 65 Piece Set + 45 Marbles 65 Pieces + 45 Marbles. Note: For first time use- place the pieces under light and watch them glow in the dark!! Partial of the pieces are Glow in The Dark & Partial are clear to see the marbles through! Helps develop spacial skills and hand-eye coordination through building. Ages 4 years and up. Sturdy Setups with Clear Step-by-step Illustrated Instructions in Four Different Skills Levels!