@psa Sorry I had missed your query. Yes it is some kind of plastic made out of flat threads weaved like a fabric. There seems to be something sandwiched between the two layers of this woven fabric. We get this in different 'gsm' values. I went for the thick one. I have kept a few plants in it. Water hyacinth and water lettuce which I control periodically, otherwise they will take over. There is another plant in the water that is said to be a good oxygenator having thin needle like leaves. Observe closely in the two pictures I showed. I do not know its name.
@Oberon46 Civil Engineer your hubby? Great to have one who will do many things at home! But my daughter is into wedding photography and getting assignments regularly. 25 years is a good length of time to also save enough money for the future. So no wonder he is 'bored'!! Speaks of the $$ value also!! Here, one has to go on and on and on. Rupee fights against the $$ like me fighting Mumammad Ali!!