Available Early March. Click, smile, and go!. Paper Mate® InkJoy® 300RT ballpoint pens let your words and ideas flow in ten bright and brilliant colors.. The ultra-smooth writing system never drags, plus these pens have comfortable rubberized grips that feel great in your hand.. Reliable and fluid to draw clean lines from beginning to end.. Retractable design is ready to write with just a click.. Comfortable grip feels good in your hand.. Black ink. Model # IJ300RT