These are great!!! 500mls each so each set will hold 2 litres of whatever in the fridge…very stylish…top seals well and the absolute best bit – and I would not have thought so til I got them – is the chalk and the chalk'board' label on each bottle so you can label contents, dates or owner (especially if you have small children – or childish adults). I bought two sets and sue them all the time.