SAFE MATERIAL: Our digital scale toys are made of high quality plastic, which is safe and non -toxic. All the pieces are processed with smooth, polished and gently rounded edges, without damaging the health of the children. Little fairy, 1 base, 2 dials and an easy -to -read user manual. Mathematics educational toys: the vivid and interesting aspect can arouse children's enthusiasm to learn and interest in weight and balance. It helps the child develop important skills such as classification, problem solving, numbers recognition, adds and subtraction.