Thick and durable pond liner: 10 mil (0.2 mm) HDPE liner for outdoor ponds; ultradurable yet lightweight; easy to install and flexible for a variety of shapes and designs Safe for aquatic life: Made of quality HDPE; UV resistant and puncture resistant; harmless to fish, plants and other organisms Easy to cut and fit: Cut to any size you need; simple installation with no tools required Protects pond water and simplifies maintenance: Provides a flat surface to reduce soil buildup; helps prevent harmful soil substances from penetrating into the pond water, making cleaning easier Use scenarios Backyard koi or ornamental pond: Ideal for creating a durable, longlasting liner that supports easy maintenance and shapes Garden pond with irregular or curved designs: Flexible material that can be cut to fit unusual layouts without special tools Outdoor water feature or landscape pond renovation: Replaces aging liners to restore water quality and simplify upkeep while protecting existing ecosystem Key attributes Material: HDPE Thickness: 10 mil (0.2 mm) Function: Pond containment, soil barrier, easy maintenance Compatibility: Suitable for koi ponds, garden ponds, and other outdoor water features Performance: UV resistant, puncture resistant, fish and plantsafe