Northern Brewer Oxygen Absorbing Caps - 120 Count
Fits standard, pry-off beer bottles. Do not use twist-off bottles! These caps have an oxygen-scavenging liner that can help reduce oxidation and staling. 120 per bag.
Caps are activated when wet and should only be wet just before or after bottling, do not attempt to store and reuse caps that have been exposed to liquid.
honestly I didn't see a change from standard caps
They worked fine for sealing
Why do you ask for a review of everything?
I used these caps on the 12 oz. Beer Bottles - 24 Pack bottles that you can also buy through this site. They fit perfectly without any issues. I've used probably 30 of the pack so far and did not have one defective one yet.
I am not an expert brewer so all I can say is that I only have had one lost bottle.
Caps my bottles completely and hho they may not be opened for some time, the beer has always been fresh.