Features: Crafted from robust, safe PVC composition, it provides a dependable habitat for fish and marine vegetation. The profound black coloring enhances the underwater view, promoting a calm environment that helps minimize stress for marine life. Featuring a strong adhesive backing, it installs smoothly on aquarium glass and allows for multiple adjustments. A unique protective layer resists algae buildup, maintaining its integrity even during long-term water submersion. Two finish choices: fixed thick matte black and adhesive thick glossy black, each 30 cm × 2 m, designed for easy maintenance. Specifications: Substancemail: PVC Sizemail: 30cm wide,2m long Color: Black Shape: Electrostatic thickening type/adhesive thickening type Package Includes: A fish Vessel sticker note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the difference between different monitors, the picture may not reflect the actual color of the item.