Description: Flexible water garden fish pond liner is the perfect way to ensure that your pond is functioning effectively and properly underneath the beautiful foliage and active aquatic life, It is secured to your fish and plants, is the true foundation of your pond. The excellent waterproof and flexible performance can fit all types of surfaces and remain water. Elasticity pond liner is suitable for fish pond, waterfall, artificial lake, aquaculture farm, sewage tank, rooftop, etc. Parameters Material: HDPE(High Density Polyethylene) Size after spread out: 10ft*20ft(3m*6m) Thickness: 12mil(0.3mm) Color: Black Package size: 31.9"*15.3"*3.9"(81cm*39cm*10cm) Net weight: 9.9LB(4.5kg) Gross weight: 13.2LB(6kg) Feature: soft and elastic, strong, waterproof Application scenarios: water garden, fish ponds, junkyards, rooftops, reservoirs, outdoor decorative ponds, landfill liners, mining and water containment applications. Notice: 1.We have variety of size, this link is 10ft*20ft, if you need other size, please contact us. 2.To protect the liner from tears or punctures, add a layer of underlayment before laying the liner in place.such as sand or soft fabric. Item Included: SM-056164 INTBUYING 10x20ft HDPE Pond Liner Garden Fish Pond Waterproof Liner Black Thickness 12mil 【Material】- The gardens pools membrane is made of HDPE material, pro-environmentally,No harmful substances are released, weather-proof. It can restrain the penetration of harmful substances into the pond and give your fish and plants a secure living environment. 【Sufficient thickness】- This small pond liner is strong enough to withstand extreme weather conditions, more durable, tear-proof, and puncture-proof. In addition, good waterproof performance can effectively retain the water in your pond. 【Flexible & Pliable】- The fish pond liner has good flexibility,easy to bend and fold. You can cut it in various shapes to fit all irregular surfaces. For better flexibility,you are recommended to lay the liner under the sun for 10 to 15 min before use. 【Durable & Aging-proof】- Pond liner is designed with excellent durability,high tensile,and impact strength. The size of 10ft*20ft is ideal for small ponds. The lifespan can live up to 30 years without any exposure,and it can also last for five years under intense sunlight. 【Application】- Pond liners are so widely used that you can use them with your imagination, widely used in fish pond, waterfall, artificial lake, aquaculture farm, sewage tank, rooftop, junkyards, reservoirs,etc