4-piece set includes most popular tools Thick, 2mm tinted plastic designs. Inking edges for pen work. 12" ruler with hang hole, beveled edges and calibrations on one edge. 180° protractor with increments reading right-to-left and left-to-right. 30°/60° triangle with 7 1/2" ruler and beveled edges. 45°/90° triangle with 5" ruler and beveled edges.