Premium HDPE Material:; Made with 20 mil thick HDPE for exceptional durability and UV resistance, ensuring long-lasting pond liner performance.Easy Installation:; Designed for easy cutting and customization to fit any pond shape perfectly.Fish and Plant Safe:; Completely safe for aquatic life and plants, ideal for koi ponds and water gardens.Versatile Use:; Perfect for natural ponds, waterfalls, and water gardens with weather- and tear-resistant construction.DIY & Professional Friendly:; Suitable for both DIY projects and professional installations.