1.Children love to interact hundreds chart with the board. The teacher can remove numbers and children explain the patterns of the missing numbers. Great way to develop number sense and base 10 values. 2.Practice counting groups and skip counting, teaching numbers and operations, identify odds and evens, and practice addition and subtraction for numbers 1 to 100. 3.Great 100 Clear Pockets: Made of high quality of Polyester material, and washable design ensures sanitary and lasting use. Wall pocket chart is designed for children 3 ages and 11. 4.Perfect hanging wall pocket chart size is 27.5 w x 29.5 h inches, one hundred 2inch wide clear acrylic pockets in Polyester chart. 5.This multiplication chart was the perfect addition to our homeschooling, classroom, morning meeting in preschool or kindergarten from up on. Color: Blue Material: Polyester Package Contents: 1 x Hundreds Pocket Chart Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.