Before installation, Please keep the surface clean and dry, no sand/dust. Under 15? , you can use a Hair dryer to warm the product and adhesive tapes up before installation. Please keep the product out from moisture and dust within 24 hours after installation. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. Please understand, thank you!