The Bolt Action Tec-Pen has a reliable bolt-action mechanism that advances and retracts the Parker style refill consistently. It features a sturdy clip that is attached to the body with 2 small screws. It also has an end cap as well as a stylus for all touch screen devices. The metal has a 24k Gold finish. The body is a real green circuit board encapsulated in acrylic. The shape has been turned with fit in mind for each persons preference. The finish is very durable and will stand up to the oils of the hand. Wiping with a microfiber cloth will renew the luster. It is approx. 5/8"dia. x 5.25"L.