RY4 Double is the intensified version of our RY4 e-liquid. For those who are not familiar with RY4, it is a popular tobacco blend that combines the aroma of tobacco with the rich, sweet, and nutty taste of caramel. The two aromas and taste just complement each other perfectly. Many tobacco enthusiasts say that this blend is one of the best they have ever puffed. Now, even if you do not want to smoke tobacco anymore, you can still enjoy the RY4 double blend when you try our one-of-a-kind RY4 double e-liquid.