The bottle is available in a 2oz. (60ml) or 4 oz. (120ml) size and is conveniently marked in tablespoons for accurate feeding. One tablespoon equals 1/2 fluid ounces or 15ml.

The nipple will need to have a hole made in it by using a hot needle (allow the needle to cool before removing, so the silicone does not melt together) or by cutting an "X” with a razor blade or scissors. The size of the opening will regulate the formula flow. Once your animal has teeth, it is advisable that you monitor the nipple’s condition for your animal’s safety. The bottle brush may be used to keep the inside of the bottle and nipple clean.