This Desk Corner Sleeve, designed to fit 90° L-Shaped or Corner desks, instantly creates additional desk space with a 25x13.1in (635x332mm) usable surface, accommodating a keyboard and mouse. It is compatible with desk thicknesses ranging from 0.5 to 1.5in (127 to 381mm). The desk extender helps support your wrist while promoting an ideal distance from your monitor for improved ergonomics and reduced eye strain. The innovative low-profile clamp provides ample clearance for knees and chair armrests. The protective foam strips preserve the desk's surface. The Desk Corner Sleeve is built from thick steel sheet with a powder-coated finish. This desk extender/tray is backed for five years, including free lifetime 24/5 multi-lingual technical assistance.