Pattern Master is all-in-one pattern tool combines the functions of a graders square with the essential curves required for necklines, sleeves and trouser crotches. It is good for both professionals and beginners. Pattern Notcher is a precision crafted tool to mark notches on pattern paper or tissue pieces. Creates deep square cuts in the edge of patterns. Used to make notches on slopers or patterns. Gridding Scale - 18" Made of clear plastic . Dimensions - 450 x 50 x 3 mm. one side marking in cm and other side in inches. ideal for designers and fashion students .