This convenient tabletop desk turns existing desks into standing desks in seconds. One size fits all students as it quickly adjusts from 8"H to 14"H in 2" increments without screws or bolts. Simply slide the desk surface from its slot in the frame and replace it in any other slot to instantly achieve your desired height on the fly! Ease of adjustment means there's no need to haul out new equipment for new users between class periods. Eco-friendly rubber wood with a gloss finish looks great and lasts for years. Generous 24"L x 14"W working surface allows plenty of space for papers, pencils, and other school supplies. Supports 50 lb. Base is 18"L x 16-1/2"W x 15"H. Overall, desk is 11-1/2 lb.