Montessori Wooden Balance Beam Weighing Scale Early Childhood Education Tools Montessori Early Development Toy Montessori Materials Explore and learn the concept of weighing with scales; Exercise kid's cognition of balance and weight and hand-eye coordination; Play kid's imagination, free combination and improve the development of brain; The toys can be used as teaching tools in school, home schooling, or early childhood development; We provide 30 Day money return guarantee, as long as you find the purchased item is different from our listed description and condition.