Don't know what the real description would be so I will refer to it as 'pellet pad.'
Anyways,Sniper kindly gave me one which he sourced in Poland at the 2007 worlds. I really like these jobbies and wondered how/if I can replace it when the time comes. Here's something that I discovered works schmart as a replacement for the real Mckoy.
Buy one of these so called 'rubber' fly swats;
Remove the wire handle:
Mark the outline for the shape you wish to cut:
Cut on the outline with sharp scissors:
attach a necklace and tadaaa !
Interestingly they don't seem to be coming from the same template as they do not have the same number of holes on them. However I have counted four different samples and the least amount of holes was 54, enough for a full FT shoot plus 'spillage'.
I find these pads work very well and once you are used to it you can literally use it with your eyes closed as all you need to do is press/pop the pellet out between your thumb and forefinger and you are good to go. Hunters will find it very quiet too.
Here I have two pads on the same necklace holding 120 odd pellets:
Schmart eh? Thats enough pellets at one go to keep even the Walther 'load 'em on Sunday and shoot all week' shooters busy.