Custom Pens, BIC Triumph 537R .5mm Pen - Ultra Fine & Smooth Writing, This two-piece pen has a modern and professional design. Its .5mm ultra-fine point with a super-smooth ink system provides an effortless writing experience. .5mm (ultra-fine point) featuring ultra-smooth ink system for effortless writing Modern and professional design Mechanism: Two-Piece ... #T537R5 $1.17/each.