Attention: (1) Material: 100% Polyester (Not Poster Material/ Not Sticker) (2) Package Content: 1 x Fabric Background (With Clear Double Sided Tape) (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 hands Warm 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.