With a mouthwatering variety of flavors to choose from, the Kingston K Bar has 2ml of pre-refilled juice with 20mg of nicotine intensity. Any flavors of the K Bar you choose will last up to 600 puffs on the integrated 400mAh inbuilt battery, providing all-day vaping delight. Due of their small, compact size, they are made to be simple to use, carry, and have when on the go. There is no need to recharge or replace it once it has been used up. Just throw it away.