1. INCH A3 DRAWING BOARD - More accurate drawing tools, measured in INCH. - Made of high quality plastic, lightweight and durable. - Ergonomic designed. - Size: 19.7'' x 14.4''. 2. T-SQUARE AND TRIANGLE - The T-square straightedge slides up and down on a plastic runner, maintains a precise 90° angle, and can be locked into position on both sides of the board. - The triangle with angle attachment slides in a groove on the T-square, making it easy to move back and forth. 3. PAPER LOCATOR AND TILT ANGLE FEET - Paper clips on both sides of the board and a scale clamp on the bottom improve drawing accuracy and stability. - You can also attach the anti slip support legs to the back of the board to find a comfortable drawing angle. 4. APPLICABLE OCCASIONS - This drawing board is an indispensable tool for engineers, designers and engineering students, and also a perfect gift to your friends. 5. PACKAGE LIST - Set Square - 2x Clamps - 1x Protractor - 2 Anti Slip Support Legs - 1x Sliding Ruler - 1x drawing pencil and lead core - all parts in picture included! - It will be a great Christmas gift for engineering students and people who draws a picture metrically.