Feature:Made of high-density polyethylene material HDPE that is safe for fish, plants and wildlife0.3mm thick pond liners are durable and won't harden, crack or soakStrong, windproof, tearproof, safe for plant and fish life, long-term useEasy to install, no tools required, resistant to sun UV rays and punctures, durable and versatilePond liners provide a flat surface for your pond and reduce soil buildupIt can effectively prevent harmful substances in the soil from entering the pond and pollute the water body, allowing you to easily clean the pond.Ideal for a variety of water feature applications, koi/fish ponds, water gardens​​​, streams, waterfalls, fountains, decorative pondsTips for choosing and using a pond liner:First: measure the maximum length and width of your pond before buying. It's best to order a pad slightly larger than the pond so you can cut it to any sizeSecond: To better protect your pads from tearing or puncturing, add a layer of padding before placing the pads in placeYou can choose sand, old carpet, old padding, or any soft and durable piece of cloth as a pond pad to protect the new paddingFinally: Cover the edges of the pool liner with stones of varying sizes, secure the liner with weights, and start fillingSpecification:Size: can be customizedThickness: 0.3mmMaterial: HDPEColour: BlackPackage Contents: 1 Pond LinerIf you have any other questions, please feel free to contact us.