Berkley & Jensen Baby Bottle Liners (2 pack - 100 in each box - 8oz each bottle liner - Total 200 liners)

The liners are thick and durable but I was disappointed that the 8 oz capacity it says it is , is actually 2 oz short when I compared it to my Born Free bottle. I made the measurement because my baby usually is happy when he consumes 8 to 9 oz of formula but when I started using this liner for my drop in bottles , my baby shows so much discontent after downing a full bottle. Alas, the accurate measurement for this liner is merely 6 oz. Now I have to make 2 bottles each feeding, such a hassle.