This handmade click pen is made from Bubinga wood, native to Equitorial Africa.  It uses a ballpoint Parker refill, which is easily replaced when needed, and easily obtained locally or online.  It's hand turned on a lathe, sanded, and give a protective varnish. A black button click mechanism is used.  The weight of the pen is comfortable at 36 grams, with 0.48" diameter barrel that fits most hands well.   A very distinctive pen for someone who likes medium wood.