Math Game: This math toy scale weighing game teaches the baby to know balanced principle through kids' finding solutions to make these weights balanced. Teaching Tool: The balance scale math toys will teach kids how to learn addition and subtraction math skills, and develop children's interest in weighing and balance, encourage interactive play and help develop fine motor skills. Full Set: The math toy scale suitable for 2 players which makes it more attractive. Includes scale rod, base, pole, bracket, weights, and regulator. All parts made of environmental material, durable to play. Interactive: Preschool toy balance scale suitable for preschool and kindergarten can be used for competition or cooperation, and cultivate children's team spirit and communication skills. Best Gift: Balance counting math game is perfect for children ages 3 and Up, Great teaching tool for parents, families, and teachers. Size Chart: (L*W*H)37cmx4cmx13cm/14.57inchx1.57inchx5.12inch Package Includes: 1 Balance Rod 1 Base 1 Pole 20 Weights Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.