This bottle is in the breastfeeding section at Babies R Us. It holds 5 ounces, 3 more than the bottle that comes with the Haberman nipple. Leaks even less than the ones that come with the bottle! And while other bottles fit, this one we have found to leak the least. Especially if you line up the teeney, tiney line on the valve with the lines on the nipple.
If you are reading this, you may want to see this, this, this and finally this.