This is a Mitsubishi Pencil SELECT 3! It's a discontinued item! It's a 3-function pendulum-type pen, and the pendulum function works without issue. The ink doesn't flow due to aging. It uses D-type (D1/4C) refills. This is a find from a stationery store that closed down. It's a new, unused item that has been stored for a long time. Please only purchase if you understand that it is a retro item. *Please refrain from purchasing if you are looking for perfection. *There are dogs and cats. Please refrain from purchasing if you are concerned. *Please read the profile. #MitsubishiPencil #MultiFunctionPen #PendulumFunctionPen #Discontinued #Retro