School Smart Primary Chart Paper features two-hole punched plain paper with 1-1/2 inch ruling on one side only. Chart paper has a 1-34 inc header with a 3/4 inch dotted midline and 1/2 inch skip space. The white sulphite paper is made with 15 lb basis weight and short ruling. Sold as 70 sheets per pad. Measures 24 x 32 inches.