• Wrist rest extension support: punch-free design, easy to fix and does not damage the desk. • Foldable keyboard tray support: 90-degree storage, takes up little space, low noise, and solid bearing. • Drawer tray parts: 90-degree storage, low noise, and solid bearing. • Keyboard accessories: easy to fold, comfortable to hold and place. • Keyboard drawer sliders: adjustable design for tables of different thicknesses.