Diplomat writing instruments have been around since 1922. The Aero collection has been a very popular line crafted in aluminum. The Aero flame is crafted from solid stainless steel. Can you imagine the weight of this pen just reading this? The Aero Flame ballpoint comes with a Schmidt EZ flow black medium refill. Here at Bertram's Inkwell, we recommend the Monteverde Super Broad refills for maximum writing pleasure Simple twist action and retraction makes for simple and pleasant operation. It comes with an attractive box and packaging.