Make the most of your desk space. Retractable 5" x 10" glass board keeps all your notes in view and tucks away to save space. Adjustable legs have three positions, 2.25", 3.75", and 5.25", to raise your screen to the perfect height. Elegant glass dry-erase board fits any workspace and will not stain or ghost. 6 mm tempered glass surface and sturdy non-skid legs support monitors and laptops up to 100 lbs. Riser surface measures 10.25" x 14". Comes with accessory tray and one dry-erase marker. Quartet Desktop Glass Monitor Riser has achieved GREENGUARD Gold Certification.