The Vevor pond liner is a 10' x 15' EPDM liner designed for fish ponds, koi ponds, waterfalls, fountains, and water gardens. Its 45 mil thickness helps resist punctures and tears while creating a reliable barrier between water and soil. The flexible, pliable material is easy to bend, fold, and trim for different pond shapes. UV-resistant EPDM construction helps prevent cracking, splitting, and deterioration over time. The black finish supports a natural-looking pond appearance.