Pontec Black Pre-Packed 0.5 mm / 4 x 6 mLong lasting and flexible: With these pond foil cuts in 4 m x 6 m, smaller garden ponds or streams can be designed close to nature. It is made of black PVC, is 0. 5 mm thick, opaque and light resistant. When laying it proves to be extremely flexible, can be glued together without any problem and can also be repaired if necessary (sweat proof). It offers a high resistance to different weather conditions and root pressure, is resistant to cold according