These 3D deep - sea stair murals are a great way to add a touch of the ocean to your stairs or walls. Here's how to use them: First, measure your stairs and cut the mural into appropriate pieces. Then, tape the template corners on the stairs. Next, peel the adhesive film on the back and stick the mural firmly. Finally, remove the front paper layers. When it comes to maintenance, keep the black gum dry and avoid getting it wet. Also, be aware that the color on your screen might be a bit different from the actual mural because of monitor settings. Enjoy your beautiful new murals!