The Slim Twist Pen Pro includes a dual quartz rod atomizer that you load your dab into, screw the mouthpiece on, and take a hit like usual. This simple attachment makes taking dabs on the go simple and accessible. The Slim Twist Pro battery has flex temp and features a temperature dial on the bottom to select your voltage. We recommend starting on the lowest voltage when using an oil cartridge. Click the button 2x to activate Prep Mode, which starts a low-heat cycle that clears any clogs that might have settled in your cart. The Pro Kit also includes an Ooze Smart USB charger, 2 replacement coils for the wax atomizer are also included, along with a small dab tool to handle the concentrates.