The Pentel Energel retractable pen is a stylish pen with a metallic looking barrel and a soft rubber finger print grip finish. The metal pocket clip at the top adds a nice accessory to the pen allowing it to be safely put away in your pocket. This pen has a push button which is used to retract the pen's nib into its barrel. The 0.7mm tip will give you an approximate line width of 0.35mm and it can be refilled with the Pentel LR7 Refill.