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.