This water feeder is suitable for baby quail birds. Age range 0 to 14 days. In this video I showed feeder with 14 days quail. Perfect for new born quail babies. New born quail babies are very tiny. In normal water feeder they can fall in the water. But this water feeder 100% safe for the quail babies.If you want custom size, just contact with me. I will provide you any size you want, but you have to add extra charge.