This product of dollar is a good quality and demanded product. Leak-Proof plastic bottles. It is a good quality fountain pen ink. Suitable for refilling all types and all brands of fountain pens that use type filling system.This ink gives a fine display or writing and is used in offices and study institutes. This plastic bottle is leak proof and can easily be used to fill ink from it. it comes in Black color and also in other major colors. This bottle contains 60 ml of ink inside it.