✔Metal steel keyboard drawer, smooth surface, corrosion-resistant, durable. ✔ Low noise and smooth sliding. ✔The keyboard tray is installed under the computer desk to relieve pain and fatigue in the wrists, elbows, shoulders and neck. ✔Detailed information Name: keyboard drawer Tray material: steel Color: Gray (A)/Black (B) Quantity: 1 piece Tray size: 200x480mm/8x19inch Installation size: 410x565mm/16x22inch Installation method: screw fixed ★Used for desk tops with a thickness of 1.5cm or more. ★The screws screwed into the tray must be tightened to avoid affecting the operation of the slide rail. ★Due to the installation height (95mm), please ensure that the height of the partition bar under your table is within 80mm. ✔Attention 1. The dimensions of the product are measured manually, and there may be slight errors. Please refer to the actual product. 2. Due to shooting in different light, there will be slight chromatic aberration. 3. If you have any questions about the product, please contact us, we will provide you with solutions in time.