The recycled cardboard runway and airport parts are specially designed for indoor use and they offer an extra benefit: kids can write or doodle on the back.The Runway is a great addition to the cardboard series. Fourteen recycled cardboard parts with blue screen printed graphics have typical markings that can be seen on airports, like taxiways, take-off and landing strips, gateways and a helicopter pad.We added four newly designed shapes that make them a great addition to the range of waytoplay toys.