<b><p>matters need attention :</p></b><p>1.it can not use on car</p> <p>2.it can not use "spray lacquer" "stoving paint" "paint of car" "water-based paint" and "chalk style paint"</p> <p>3.You can't paint on rainy days</p> <p>4.There is an installation instruction in this picture</p> <b><p>How to install?</p></b> <p>you can use liquid nail glue and 502 glue(Quick-drying glue) or nail fix it . quick-drying glue can Fix it quickly and liquid nail glue Apply evenly on the back and press tight (liquid nail glue It normally takes 48 to 72 hours to solidify, during which time it cannot be moved.This is why you need quick-drying glue or nails)</p> <p><b>if you use it in a wet place like the bathroom, please seal the edges with glass glue, as the liquid nail glue is not waterproof. </b></p>