With the Terp Pen, simply remove the magnetic cap, inhale through the mouthpiece, and then apply the coil into your desired amount of concentrate Meet our latest on-demand concentrate-only device. We have redesigned the Boundless CF 710 to be 1/3 the weight and size, removed the button to increase usability, increased battery life, and made it more affordable for the consumer! With the Terp Pen, simply remove the magnetic cap, inhale through the mouthpiece, and then apply the coil into your desired amount of concentrate. - Available in Teal / Silver / Black