For those occasions when the Landing Net Block is lost, broken or needs replacing. We provide a replacement answer with our ABS landing net block.
This is not a total universal fitting, as it might not fit certain types of match landing net threads. But with the majority of landing net handles, it should be OK. 
Just needs a couple of self-tapping screws (not provided) to screw and lock into position on the alloy net frame. (screw type shown in photo)