1. Isomars Fashion Designing Scale Set of 4 includes Arm Curve Scale 24" Straight Scale 24" Hip Curve Scale 24" Leg Curve Scale 24" The products are made from virgin plastic which are very useful for measuring ,cutting and designing . 2. This 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.