The Standing desk can help develop good posture at the computer. Your monitor should be at eye level about 20 inches from your face at a 20-degree tilt while you should bend your arms at 100-degree angles at your sides. Our stand up desk comes in 4 colors and 4 sizes for you to choose from. You can choose according to your needs. Product Information Color: White/Black/Brown/Yellow Size: 40x24 Inch/48x24 Inch/55x24 Inch/63x24 Inch Weight Capacity: Up to 176LBS Feature: Height Adjustable Noiseless Product Dimensions 40x24 Inch: 39 L * 23 W * 28 H Weight: 42LBS 48x24 Inch: 47 L * 23 W * 28 H Weight: 46LBS 55x24 Inch: 55 L * 23 W * 28 H Weight: 50LBS 63x24 Inch: 62 L * 23 W * 28 H Weight: 55LBS Reminder 💗Manual measurement has been used there may be some reasonable error. 💗Product pictures are for reference only. Real product s color may be a little different from the image due to the lighting or monitor s display. 💗Due to the large size of the product and inconvenient transportation once the order has been shipped we only accept the return requests due to quality issues. Hope you can understand.