The products are of high quality,Smooth and burr-free, the paint is safe and has no odor Preschool educational toys for children mathematics enlightenment. It can be used as an auxiliary teaching aid for Montessori education. It can help children understand colors, numbers, learn counting, find the correspondence between numbers and quantities, and compare size, height, and quantity Contents: 135 Pcs of Multifuction Educational Toy.