As title really, last year I had some that were so large I needed help to lift them off the floor which are perfect for my two big horses, but one got lost and the other broke.
We have two huuuuge ones, I think they are called trawler nets and were from derby house, it was 4 or 5 years ago (have lasted well). They only came in an aqua green colour and I believe they are made out of fishing net rope, hence the name.
Had an internet traw and found the trawler, it is made by IV horse and is on this website (and probably loads of others). The pic doesnt look as big as they realy are!