R.S.V.P. pens feature maximum ergonomic comfort thanks to latex-free rubber grips that offer writing control. The permanent ink included in these cozy pens provides a smooth, reliably clean mark that is easily legible. Rubber Comfort Zone grip offers precise control. Grab hold of this cozy, wide-barreled grip for the ultimate in writing control - easily move the pen as you wish, with no slippage! Latex-free rubber grip provides extra comfort. Pentel pens deliver permanent ink for extremely reliable, high-quality results.