Multi-function Stacking Puzzle is made of premium wooden and water-based paint material, with 16 puzzles and 1 board including 4 color puzzles and 4 geometric shapes. Help your kids learn geometric shapes and build color recognition ability, exercise children's spatial concept and hand-eye coordination. Also can use these puzzles to make different combinations. This well-built, small size and lightweight Multi-function Stacking Puzzle will be a great gift for your kids!