The 10 x 15 FT Heavy-Duty HDPE Pond Liner is a durable and waterproof option for creating and maintaining koi ponds, waterfalls, and other pond features. Made of high-density polyethylene (HDPE) plastic, this liner is designed to be tear-resistant, leak-proof, and resistant to sunlight. With a size of 10 x 15 feet and a depth of 1 inch, this liner is suitable for all water types and comes with full installation instructions for easy setup. Perfect for both fresh and saltwater environments, this flexible pond liner is a reliable choice for any pond or water feature project.