S1086. AB Calligraphy Ruler (for Script)
These rulers, designed by Aquino da Silva and Belinda Chim, are very handy lining tools. Each ruler is the size of a credit card and is suitable for daily practice or lining on small cards and envelopes. Engrosser's has x-heights from 3 to 7 mm and a 55-degree slant angle. Spencerian has x-heights of 1, 1.5, 2, 2.5, and 3 mm and a 52-degree slant angle.
I purchased the set of two AB Calligraphy Rulers and could not be more pleased with the ease of use and the quality. These rulers are one of the best calligraphy tool purchases I've made.