This brightly colored green and yellow gradient puzzle is a fun way to challenge yourself and others. The act of putting it together is slow and deliberate, where the color and shape of each piece is used to locate its proper position. Made of thick stock and high-quality art paper, the puzzle can be assembled again and again without losing its edge. 500 interlocking pieces. Ages 8 and up. Measures 18 x 24 in. completed.