These are great corks if you need high quality for wines aged a long time, like 5+ years. I just used them in a batch of Ranch 11 Cab. These worked very well in my "table top" corking machine and inserted into tapered Bordeaux bottles super smoothly. But what's up with 25/bag? The wine kits make 28-30 bottles forcing you to buy 50 corks (2 bags) and drive up the cost unnecessarily! For some cost savings, you can use Tech1+1 for wines aged 3 years or less, or agglomerated for wine to be consumed soon after bottling, like many whites and the Sangria type fruit/wine blends.