Durable and flexible: These pond liners cut to 4 m x 3 m are ideal for creating smaller garden ponds or streams in a natural way. Made from black PVC, they are 0.5 mm thick, opaque, and light-resistant. When laying, they prove to be extremely flexible, can be easily glued, and can also be repaired if necessary (weld seam resistant). They offer high resistance to various weather conditions and root pressure, are cold-resistant according to DIN 53361, and are rot-resistant.