Discreet and stylish, this vaporizer is perfect for the office. Made of stainless steel, the Pen Pal is both a functioning pen and a concentrate vaporizer. The pen writes like a dream and there are 3 ink replacements in the kit. The 350mAh battery is draw activated and button-less and the unit utilizes a 510 thread adapter. It takes only 2 hours to fully charge with the included micro USB charger.