Helps kids to develop an understanding of patterns and number relationships utilizing a number grid from 1 to 120. Clear pockets make this chart ideal for teaching numbers, odds, evens, and operations. Details: Blue27" x 31.89"120 clear pockets make this chart ideal for teaching numbers, odds, evens, and operations. Different color on reverse side of number tiles to highlight patternsHelps kids to develop an understanding of patterns and number relationships utilizing a number grid from 1 - 120Chart is washable and made of nylonPockets are clear for easy viewing of numbers120 numbered cards are printed double-sided to demonstrate number patterns Built in metal grommets for easy hanging and prevention of wear and tear to nylon material