Whiteboard & Chalkboard Drawing Tool Set Includes 180 protractor, 45 triangle, 60 triangle, inch/metric ruler with suction cup, inch/metric t-square with suction cup and compass that easily accommodates standard chalk and the holder reverses to become a blackboard pointer Oversized drawing tools Pads on the reverse side for improved grip Whiteboard adapter accommodates large whiteboard markers and larger chalk All measurements are printed in Black type that can be seen easily