A school tool designed with students in mind. Features a movable arm for greater accuracy. Soft touch grip and non-skid backing for better control. Protractoris infused with Microban® Antimicrobial Product Protection to inhibit the growth of bacterial odors. Protractor will be blue, gray, green or pink. Degree Graduations: 1/2°; Material(s): Plastic; Ruler Size: 6" Ruler Edge.