Arshiner Wooden Building Blocks Set Shape Sorter Color Number Math and Stacking Learning Toys SAFE TO PLAY: BPA-free & lead-free high-quality wood material, completely baby-safe toy EDUCATIONAL & FUN: Great creative toy improve kids cognitive ability, preschool educational toys learning tool MATH LEARNING: Wooden mathematical game for kids to learn simple maths calculation, promoting eye and hand coordination SHAPE & COLOR & MATH: This toy aims at teaching the concepts of shape, color and math, develop kid's intelligence and practical manual ability PRODUCT DIMENSION: 27 x 17.5 x 5cm/ 10.53 x 6.83 x 1.95 inch (L*W*H), come with bag for easy storage