Material and size: made from strength HDPE fabric with a thickness of 0.12 mm for durable, longlasting performance. Durable and weatherresistant: engineered to withstand harsh environments and UV exposure. Puncture and tearresistant construction reduces risk of damage from rocks, roots, and ordinary wear. Flexible fit for irregular shapes: the liner has good flexibility to conform to uneven or irregular pond beds, streams, and cascades, making it suitable for nonstandard shapes and retrofit projects. Impermeable membrane film: creates a continuous, watertight surface that minimizes soil buildup along the pond floor and prevents soilborne pollutants from entering the water, simplifying cleaning and maintenance. Lightweight and easy to install: the thin, flexible sheet is easy to handle, position, and trim, reducing installation time for DIY or professional projects. Broad compatibility and uses: suitable for koi ponds, fish ponds, water gardens, fountains, dryinstalled water features, streams, waterfalls, and other harsh landscape applications. Use scenarios Backyard koi or fish pond: line the basin to protect water quality and prevent seepage while adapting to irregular shapes and rock placements. Garden waterfall or stream: conform the liner to winding channels and cascades to create a continuous waterproof channel. Fountain or water feature without a dug basin: install as a nonexcavated waterproof surface under stone or pavers for decorative water elements. Key benefits at a glance Keeps water contained and cleaner by blocking soil contaminants. Resists UV, punctures, and tears for longer service life. Flexible and lightweight for easier fitting and installation. Compatible with a wide range of pond and waterfeature types.