The extra large 12x8 inch tray features textured anti slip coating to securely hold, keyboards, or small controllers Raised edges accidental slips during intense gaming This aluminum profile chair mount tray arm is designed to fit various gaming chair frames and workstations, offering easy installation and removal for flexible workspaces adaptation Perfect for gamers and offices users alike Features 360 degree rotation and height to customize your optimal working position The angled design enhances comfort during extended gaming or computer work, reducing wrist strain Made from premium aluminum alloy with reinforced joints, this mounting arm provides load bearing capacity up to 5lbs while for long term durability in any environment Includes all necessary mounting hardware with clear instructions for quick setup on most aluminum extrusion chairs The minimalists design blends seamlessly with modern gaming setups and offices furniture