Item Weight:2.11 ouncesPackage Dimensions:12.24 x 12.2 x 0.71 inches1.Addition and Subtraction: This toddler busy board features addition and subtraction game style, excellent toy for autism training.2.Hook and Loop: This felt busy book adopts 3mm thick felt and hook and loop at the back, very easy for kids to play.3.Color Cognition: This number busy board in bright and vivid colors stimulates your kids ' color cognition.4.Selective Material: This addition and subtraction game adopts odorless and durable felt material, not easy to deform.5.Perfect Gift: This toddler busy book with number style design is perfect gift for your kids and students.Specification:Item Type: Toddler Busy BoardMaterial: FeltProduct Size: Approx.31 x 29.8cm / 12.20 x 11.73in ( Manual Measurement, Slight Error May Exist )How to Use:Apart from small hands and flowers, each number can be removed and replaced at willPackage List:1 xToddler Busy Board >Note:Suitable for ages over 3Selective Material: This addition and subtraction game adopts odorless and durable felt material, not easy to deform.Perfect Gift: This toddler busy book with number style design is perfect gift for your kids and students.Addition and Subtraction: This toddler busy board features addition and subtraction game style, excellent toy for autism training.Color Cognition: This number busy board in bright and vivid colors stimulate the s your kids' color cognition.Hook and Loop: This felt busy book adopts 3mm thick felt and hook and loop at the back, very easy for kids to play.