1. Professional design conforms to ergonomics, avoids arm hanging in the air, relieves shoulder fatigue, no matter how tired you are at work, you must learn to of yourself2. The punch-free design does not hurt the tabletop and can be directly clamped to the edge of the table. The thickness of the tabletop is Less than 8CM3. Rounded corner design to prevent collision damage4. Storable design, easy to fold and store without taking up space5. Double clips + double brackets fixed support is stable and firm, strong support, safe to useType: table matSingle-sided double-sided: single-sidedColour:WhiteMaterial:woodenSize: 30 x 20 x 9cmPackage Contents:1 x armrest bracketOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.