Highlights3 Height Adjustments44LBS Max Load160Pcs Ventilation HoleDetails*Features* - ** 3 Height Adjustments* - Comes with 3 adjustable height levels(3.93in/ 4.73in/5.52in) allowing you to choose the most ergonomic,healthiest and most comfortable viewing angles while working. Note - Please take away the items on desk when you adjust the height.**44LBS Max Load* - Made of heavy duty iron construction with non-skid rubber underneath for a flawless experience. The rubber keeps the legs in place and protects your desk surface from scratches. Holds up to 44LBS including most monitors,printers,and laptops,etc..**160Pcs Ventilation Holes* - Perforated 160Pcs mesh hole platform,the adjustable monitor riser will help to prevent dreaded overheating and keep your computer cool.**Easy Installation* - Comes with 1 platform and 4 legs,all you need to do is just screw the 4 legs into the platform and away you go. No tools needed.** Optimal Desk Organizer* - Our monitor stand can free up more deskto