HEAVY DUTY,,,GOOD QUALITY UNDERLAY IDEAL FOR UNDER POND LINERS , ALSO GOOD FOR SUPPRESSING WEEDS UNDER CHIPS, BARK ETC. KEEPING PLANTS FROST FREE,,,,,BUY IT NOW PRICE IS FOR 4M X 1M,,,,,BIGGER AREAS WILL BE 4M + LENGTH YOU NEED,,,,KEEP LENGTH TO FULL METRE LENGTHS,,,,,,IF YOU NEED 10M LONG IT WILL BE 10 X BUY IT NOW PRICE SO YOU WILL GET 40M2