Durable material: Heavy duty pond liner is constructed from high-quality HDPE materials with a thickness of 0.12mm/5 mil, designed to withstand extreme weather conditions and suitable for long-term outdoor use, ensuring safety for aquatic life. Flexible design: The garden pool membrane is flexible, allowing for easy bending and folding to accommodate various shapes, making it customizable for specific pond requirements. User-friendly installation: The bottom layer of the waterproof pond film creates a flat surface for your garden pond, minimizing soil accumulation; easy installation without tools, with a layer of round cobblestones recommended for top coverage. Protective barrier: This pond liner effectively prevents harmful substances from penetrating the water, helping to maintain cleanliness and support a healthy environment for aquatic plants and animals, while also simplifying maintenance. Versatile applications: Ideal for use in garden ponds, reservoirs, water features, streams, fish ponds, and water gardens, this pond liner also serves as a decorative dust cloth for various architectural projects.