Calling all architects, engineers, designers, and students! This kowaku A3 drawing board set is seriously professional-grade stuff. You get this nice 50x37cm (about 19.7x14.6 inches) drawing board made from durable PP material - it's lightweight enough to carry around but sturdy enough for serious work. The dual rail system is genius - it keeps your paper securely clamped in place while ensuring you get perfectly straight lines every time. The set comes with a sliding set square with protractor, sliding straightedge with protractor, and rotating square with protractor - basically everything you need for precise technical drawings. The rulers all have slots so they move smoothly along the parallel ruler, giving you full accuracy from top to bottom of your sheet. The board even has centimeter markings along both edges for quick measurements. Whether you're working on architectural plans, engineering designs, or technical drawings for school, this set makes everything so much easier and more precise. It's way better than trying to makeshift something with regular rulers and a clipboard. If you're in any kind of design or technical field, this is one of those tools that'll quickly become indispensable. Seriously worth every penny for the time and frustration it saves!