This syringes holds up to 5ml (1 teaspoon). The syringe may be placed directly into the medicine bottle or the adaptor can be used. The unique cone shaped adapter fits just about any medicine bottle to help ensure your little one gets the correct dose. You smply insert the syringe into the adapter and draw the required amount to make administering medicine easy, fuss and mess-free. Great for travelling. It has easy to read markings for the correct dosage.