SYEER Wooden Abacus Colorful Beads Removable Jiugongge Plug Minus Puzzle Number Kid Educational Toy Safe non-toxic, use wood material, green paint colors to attract baby attention. Lightweight and easy to carry out, help your baby learn to count, identify colors, learning addition, subtraction formulas, let the baby one side entertainment while learning. As a small gift for children is also pretty good, very practical teaching tool. Material: Wood material