IJOY as the leader of RDTA category, continues to introduce new, overthrow the past, reshaping the future. RDTA 5 is the fifth generation in the RDTA line, the innovative top-fill design, makes the refill never been so simple! Upgrade multiple airflow system, add the bottom adjustable airflow to the traditional side adjustable airflow. Unique resin drip tip, isolated heat and at the same time to meet the individual needs. RDTA 5 is the ultimate choice for RDTA enthusiasts!