✎ Rounded Corners - Keyboard Tray (Desktop Extender), specially designed for long-term computer workers, installed under the desk to save desktop space and improve work efficiency.✎ Height adjustableAdjust height as needed. 5 holes are adjustable (5.5cm~8.5cm), and the height adjustment range helps to ergonomically position the shoulders, elbows and wrists for a comfortable working state and easy use.★Material: Metal rail + wooden pallet (3 sizes, 5 colors)Size: (Due to manual measurement, the error range is 1-2cm)54 × 27 cm60 × 27 cm70 × 27 cmThickness: 1.6cm◈◈◈Take a standard keyboard (45cm) as an example, the 54cm tray can only hold the keyboard, the 60cm tray can accommodate the keyboard and mouse, but there is not enough space, and the 70cm tray has plenty of space◈◈◈Package: 1x tray, 1 pair of slide rails, 5 holes lugs x 4, 16x screws (1.1cm)◈◈◈ Complete accessories, simple installation, 10 minutes to complete the installation.✉✉✉Warm reminder:1. Colors may vary from monitor to monitor, please understand.2. The size of the product is measured manually, there will be certain errors, please refer to the actual product.3. If you have any questions, please contact us by email, we will reply you within 24 hours.