High quality membrane Providing an effective barrier against liquid and water vapours for the lifetime of the concrete slab laid over it，helps protect plants from the wind and rain，can be laid securely on the ground to warm soil early season.Specifications:Color: BlackMaterial: HDPE (High Density Polyethylene)Thinckness:12S (0.12mm)(1CM=10MM=0.39inch)Package Included:1x fish pond linerCharacteristics:100% brand new.Beneath the beautiful foliage and active aquatic life of your pond lies the product that keeps it functioning effectively, the fish pond liner.By installing a durable fish pond liner that will withstand a variety of weather and water conditions, you can avoid the hassle of regularly replacing this integral part of your pond.HDPE fish pond liners are also an excellent choice because they are durable and strong, yet lightweight and easy to manoeuvre. HDPE pond liners are safe for fish and durable.Able to withstand the harsh environment, our pond liner is resistant to UV, sunlight and temperature and will not crack at all. It is also non-toxic, and is safe for plants, fish and other aquatic life.Additional beneficial properties:Easy to shapeFits ponds of all shapes and sizesEasy to work withCan be repaired or patchedA notice:1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight deviation for the measurement data.