Twist-top rollerball with stainless steel barrel with polished brass accents and loaded with a rollerball refill. Each pen is lacquered in a translucent lacquer over the steel tapered barrel. The knurled twist-top is a Retro 51 trademarked design. Includes 2-color HNTB imprint on barrel, SPARK top and deluxe black tube gift packaging with HNTB logo imprint.