InkJoy Quatro features the revolutionary InkJoy writing system that gives you the best in effortless writing in multiple ink colors. Refillable pen comes in the business ink colors that include black, blue, red and green. Simply push the plunger on top to change colors. The InkJoy writing system starts quickly without dragging, requires minimal pressure from your hand, and delivers crisp, clean lines every time. Sleek modern design also offers a glossy white finish, 1.0mm tip, wide buttons for easy use, grip for more comfort in writing and a lanyard hole for on-the-go convenience.