Esterbrook JR is a resin pocket-sized fountain pen. JR, short for “J Reborn”. A modern take on a vintage classic, it is complemented by gold-plated trim and purple accents on the top finial. The JR Pocket Pen is an excellent “heritage” pen, built and designed for a comfortable writing experience. It’s stylish and meant to match the user’s style, with an elegant, non-fussy compact size. It fills via standard international cartridge/converter (included) and has a gold-plated JoWo #5 stainless steel nib. This pen comes in vibrant colors like Purple Passion, Key Lime, Orange Sunset, Blue Breeze, Lemon Twist, Capri Blue, Pumpkin Latte, Tuxedo Black, Carmin Red & the depth of shading & color adds a lot of beauty to the pen.