Choose a device:

quadrilateralwhiteqty: 1

More specific:

rhombus whiteqty: 1

trapezium whiteqty: 1

rectangle whiteqty: 1

square whiteqty: 1

concave quadrilateral whiteqty: 1

Primary or secondary?

primary quadrilateralwhiteqty: 1

secondary quadrilateralwhiteqty: 1