At the Shohin show, Kathy Shaner asked to borrow my nut sack, and I lost count of how many times she used it! Word must have got around that it works pretty good, because at the Silohette Show, Tyler Sherrod (who has styled a Kokofu Prize tree), wanted to use it. I told him it had petered out, but might still do the job. It did, and when he returned it he said it was a “pretty worn” old nut sack! It becomes a problem when the sac gets so thin the nuts start to fall out! You sometimes can extend the life of a worn out sac by rubbing some oil on it, but that gets kinda messy. After a while the old nut sack just gets too mushy to mess with and you have to go find a new sack with fresh firm nuts!