Ergonomic Design: This desk extender with wrist rest is ergonomically designed to expand your desktop space horizontally and keep the extender level with your desk. It alleviates constant strain on neck, arm, and shoulder muscles for computer users, promoting a healthy posture and making desk work more comfortable. Foldable Elbow Desk: The desk extender features a foldable design. When not in use, simply fold the armrest up 90 degrees and keep your desk organized by pressing the clips. The rounded corners are designed to prevent collisions and enhance safety. Easy Installation: The elbow support board comes with a clamp attachment, requiring no drilling and causing no damage to your table. Easy to use, the armrest computer can be installed in 3-5 minutes. It can be used when the tabletop thickness is 1-6 cm. Double Clamp & Double Support: Super Stable Design: With double support and a triangular design, the desk extender is more stable and can support a weight of 25 kg. When using the keyboard, it feels very stable. High-Quality Material: The desk extender is made of high-quality panel material that is healthy, environmentally friendly, robust, and durable. The design is not easily damaged or deformed. It has good moisture resistance and abrasion resistance and will not be damaged or deformed. Notes: 1. Cannot be installed on curved or specially shaped tables. 2. If the edge of the table is sloped, it cannot be installed. 3. If the edge of the table is raised, it cannot be installed. 4. If the edge of the table is curved, it cannot be installed. Please confirm your table type in advance. Color: Black Material: MDF+Carbon Steel Size: 30 x 17.5 x 5 cm Package Contents: 1 x Hand Rest Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.