Attention:(1) Material: 100% Polyester (Not Poster material)(2) Package Content: 1* Background (3) Due to the shooting light and monitor brightness, there may be a slight color difference, please understand.Installation Instructions:(1) Step 1: Clean the glass panel outside the tank(2) Step 2: Glue double-sided tape to the 4 corners of the background fabric(3) Step 3: Attach the background fabric to the glass panel outside the tank(4) Step 4: Smooth it gently with your handsWarm Tips:The backdrop will be sent folded, so there may be creases when you receive it. But please don't worry, here we suggest:(1) Ironing the back surface of the product with low temperature to remove wrinkles easily.(2) Roll it up tightly with a cylinder for 3-4 days, it will be ok.