Safety and environmental protection, non-toxic odor-free, suitable for family safe home space. Lifelike, natural brick pattern effect, simple and modern style. Free DIY, easy self-adhesive design, installation, casual collage, arbitrarily cut. Attention: Please buy enough at a time to make sure they are come from the same batch to avoid color difference. About chromatic aberration problem: Due to the difference in light, angle, computer or mobile phone display,there will be a little color differ