The 510 bridgeless atomizer produces massive amount of vapor. Made just for the direct dripper! The product is only for dripping ejuice. Please use caution not to overfill the atomizer. It has standard 510 conneciton, which can fit most devices with 510 threading likethe 510, eGo C, Kanger and Vision batteries . The product comes with NO 510/901 drip tip. Uses most 510/901 style drips tips.