Heavy Duty Pond Liner is made of durable HDPE material with a thickness of 0.67 mm. It is designed to withstand extreme weather and longterm outdoor use, and it is environmentally friendly and safe for fish and plants. Easy to use The bottom layer of the waterproof pond film provides a flat, stable surface that helps reduce soil buildup in your pond. It installs easily. A layer features round cobblestone texture to enhance protection and provide a finished look. Flexible The Garden Pool Membrane is flexible and easy to bend or fold to fit almost any shape. You can cut it to the exact dimensions needed for your specific pond. Protective This Pond Liner Tarp helps prevent harmful substances in the soil from penetrating the pond, supporting clean water and a healthy natural environment for wildlife and plants. It also makes pond maintenance easier. Use scenarios Creating or renovating a backyard garden pond with an irregular or custom shape, using the liner to form a stable, longlasting foundation and a neat finish. Installing a decorative water feature or koi pond where a flat bottom and cobblestonelike layer provide a clean, finished appearance while protecting water quality. Protecting outdoor natural ponds or water gardens from soil intrusion in landscape settings, reducing maintenance while keeping water clear and safe for fish and plants.