The background wall is folded and sent, so it will produce folds, here is how to remove the folds:(1) Roll tightly in a cylinder and leave for 3-4 days.(2) Heat the back of the item (not the image side) with a steam iron. If necessary, iron the back with a steam iron, not a dry iron.The backdrop is very easy to hang and use:1: You can use snap buttons, clips to hang it on the wall, double-sided tape is also a good idea.2: Keep a certain distance when taking pictures, using lights can make the background brighter and more effective. We also offer other sizes.Due to the different monitors and light, the slight difference in color is normal.If you are not satisfied with the transaction, please feel free to contact me, I will reply within 24 hours and try my best to solve any problems!