They look like the kind of needles my father used to sew the massive bags up that we used to put our sheep fleeces into after we sheared them.Doesn't appear to have any of them now.
Just the Sac Needles....which are very, very good and worth the money.....if you're likely to need a really strong 'big' needle.
https://www.ebay.co.uk/itm/25-STRON...846902?hash=item284f1ac776:g:1gIAAOSwn35asQJS
I've used them for webbing, for basketry, rope work, sewing espadrilles, repairing the tension strap on a tent, etc.,
M