I prefer this original Fumytech Dragon Ball Tank RDTA!

Original Fumytech Crystal Ball Rebuildable Dripping Tank RDTA -Black $29.99
Original Fumytech Dragon Ball Tank 2 in 1 RDTA is released by Fumytech. It has very beautiful design with great features. It has two ways to fill E-liquid. Open the drip tip, atomizer can be Dripping RDA. Open the whole top cap, atomizer, can be RTA Tank.

Original Fumytech Crystal Ball Rebuildable Dripping Tank RDTA -Yellow $29.99