Foldable, ergonomic desk tray. Computer elbow rest. Small Description: Ergonomic desk extension: The ergonomically designed armrest shelf extends the desk horizontally, fully supporting the upper limbs to rest and relax the arm, you will feel more comfortable while working or writing. Material: The extension cord is made of wood, with a smooth surface, providing reliable support. use. Space-saving: The folding board is foldable when not in use, it can be folded to save space. When working on the extension shelf, you can place more items such as a keyboard, notebook, mouse. No Drilling: Easy to install in minutes, no drilling, no damage or damage to your desktop. Compatibility: The expansion card is desktop computers at right angles, on the side or front. Specification: Material: wood Objective: to widen the table, Metal Type: Cold Rolled Steel Size Chart: Small: 24x20 CM/9,45x7,87 inch (random color) Large: 55x24 cm/21,65x9,45 inch (black) The package includes: 1-Piece Desk Extension Plate