Could be from any of the cheap rubbish that is kicking around these days. I used to grab any catcher I saw thinking I would end up finding a mower it would fit. I ended up with probably a hundred catchers and then I decided I needed to get rid of them as they were only taking up space. I started cutting them up with a grinder into flat sections and usually getting rid of 4/5 a week through a couple of rubbish bins. The pile has been greatly reduced but there is still a lot I need to get rid of, so what I am saying is only collect Victa and Rover catchers if you feel the need. I used to put good catchers for free on Gumtree for nesting boxes for chicken farmers but not once did I ever get rid of one for that use.
