The 30 Caliber Bolt Action pen has a realistic bolt-action mechanism that advances & retracts to securely lock the Parker refill in place. It includes a bolt action rifle clip and a replica 30 caliber cartridge and rose gold bullet tip for added authenticity. The metal has a Chrome finish. The wood is exotic Padauk from Africa. The pen has been turned to expose the beautiful grain. It has a very durable hand applied acrylic finish to protect it. It needs to be protected from extreme temperatures and humidity. If after much use it appears dry or feels dry, apply mineral oil and wipe with a microfiber cloth. It is approx. 5/8" dia. x 5.25"L. A card with information about the care of wood pens with the name of the wood and it's origin is included with the purchase.