High-Quality Materials: A3 drawing board is made of high-quality thick acrylic, high hardness, not easy to break, not easy to deform or damage, and long service life. Size: 50.2 cm x 36.8 cm x 6 cm Ergonomic Design: This precision drawing board is ergonomically designed with 2 adjustable lifting supports. You can choose to paint on any desk, office table, or workbench. Easy to Use: Parallel ruler guides your drawing accurately, with "stop" lock/unlock functions and "fore", which can be adjusted as needed. All parts are detachable, free to choose to use the drawing board accessory tool. Wide Application: This is an A3 drawing board, very suitable for students, engineers, architects, practice and drawing tools for professional work with high precision, and also a perfect gift for friends. Package Contents: A3 drawing board x 1, non-slip backing x 2, graduated ruler x 1, sliding ruler with graduated ruler x 1, rotating T-square with graduated ruler x 1