Geyer Instructional Wonder League Robotics Competition Grid Mat, 150cm x 240cm with 30cm Grid | This mat is designed to the specification for the Wonder Workshop Dash and Dot Challenge. Includes the 1-8 and A-E labels. Features a crisp white background, and a black line grid. Printed in full color. Quality 13oz outdoor matte vinyl. Measures 150cm x 240cm with 30cm grid.