Stick ballpoint pens feature an ergonomic barrel design with a soft, latex-free, rubberized, Comfort Zone grip. Exceptional balance, comfort and control deliver fatigue-free writing. Durable, stainless steel tip delivers a consistent line with smooth ink. Color-indicator ball in cap and sleeve on barrel match ink color. R.S.V.P. Ballpoint Pens are refillable with Pentel BKL7 (0.7mm) or BKL10 (1.0mm) refills.