Specifications: High quality material, durable, non-toxic and environmental friendly. Good for kids early knowing the concept of addition and subtraction, and learning some simple operation of addition and subtraction, improving kids interest in mathematics. This is the best gift for your child. Play with your kids and it will bring you more happiness. Type: Mathematics Teaching Toy Material: Wooden Features: Teaching Aids, Eco-friendly, Math Learning Toy, Kids Gift Addition Board Length: 30cm/11.81", Width: 21.5cm/8.46" (Approx.) Division/ Multiplication Board Length: 23cm/9.06", Width: 23cm/9.06" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Base Board 35 x Add-subtract Blocks 1 x Addition Table 1 x Wooden Box Or 1 x Base Board 10 x Division/ Multiplication Blocks 100 x Beads 1 x Division/ Multiplication Table 1 x Iron Box