This handmade pen is made from Cocobollo, native to Central America, with a screw-on cap.  It uses a Schmidt 888 fine rollerball refill in black, which is easy to replace when needed, and readily obtained on Amazon, and sometimes at local stationary stores.  It's hand turned on a lathe, sanded, and given a protective varnish. This is very handsome with a medium brown color with black streaks.  The weight of the pen is comfortable at 36 grams, with a larger diameter that fits your hand well.  Very distinctive pen for someone who likes a highly figured brown grain.