Function: 1. Self-adhesive signal sticker, easy to stick and simple to use. 2. Thickened stickers, bright color, non-reflective, waterproof, no fading. 3. Provide a simple and efficient aquarium background design with an attractive theme. 4. Made of high quality PVC material, non-toxic, no odor, no water stains. 5. DIY sticker that can be cut to fit the size of your aquarium. Specification: Item Type: Sticker Color: As shown Material: PVC Size: 61x30cm / 61x40cm / 76x46cm / 91x50cm / 122x46cm (optional) Size 1: Approx. 61 x 30 cm / 24.0 x 11.8 in Size 2: approx. 61 x 40 cm / 24.0 x 15.7 in Size 3: approx. 76 x 46 cm / 29.9 x 18.1 in Size 4: Approx. 91 x 50 cm / 35.8 x 19.7 in Size 5: Approx. 122 x 46 cm / 48.0 x 18.1 in Paste method: 1. Wipe the glass surface on the back of the aquarium, add some detergent to the water (to reduce the stickiness of the glue), spray the glass surface (don't spray much) or wipe with a damp cloth. 2. Peel off the corner of the background protective film, start to paste after aligning the fixed position, and slowly apply even force when pasting. If there is an air bubble when sticking, you can burst it into a bubble and spray it again to stick and scrape it again. Do not slip in order, the leaking area will foam easily and the bubble will not appear (4). 3. Once attached, use a squeegee or tap to check the bubbles for scratching. If there are bubbles, you can use a needle to open the bubble and squeeze it with a squeegee. 4. After the paste is finished, if the water is not scraped clean, the glue will turn white, peel off and dry with a hair dryer and still stick flat. Package List: 1 x aquarium sticker Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.