The Allsop Ascend™ Dual Monitor Stands feature two height adjustable platforms that can be mounted and adjusted individually providing maximum flexibility and customization for dual monitor setups. The Ascend stands feature a robust clamp system that is hidden underneath the desk to optimize work space (fits desks up to 2" thick). Each 14" x 9" platform can be adjusted to three height options for best ergonomic positioning (4" , 4.88" and 5.75"). The platforms are the ideal option for monitor stands with traditional base stands (non-VESA) or for raising laptops to the same height as your monitor. The Ascend Monitor Stands create more usable desk space than freestanding monitor stands and offer a sleek modern look. Each platform has a 30 lb capacity.