Easy to Install and Remove: No adhesive, stick by static cling, simply to apply with a lot of soapy water. No worries about damage or residue when you remove. Installation Instructions: Step 1: Clean the target surface of the window, make sure no stain is left. Step 2: Measure the width and the height of the target area, cut the film and leave an extra 2-3 cm on each side for easier adjustment. Step 3: Peel off the transparent film. Step 4: Spray A LOT OF soapy water onto both the window surface and the backside of the static film. Step 5: Paste the wet side of the film onto the wet glass, smooth the film with hands. Step 6: Use the squeegee to remove extra water and bubbles from the center to the around with proper strength. Step 7: Trim off the margins. Step 8: Wipe out surface water with a lint-free towel.