Keep your favorite pen going strong with refillable ink for your FriXion Ball. Enjoy stress-free writing with unique thermo-sensitive ink that erases completely without damaging documents. These vibrant gel ink refills come in pink, purple, and turquoise, making writing smooth and enjoyable. They extend the life of Pilot products, making them economical and environmentally friendly. Express yourself effortlessly with Pilot's range of writing tools and simply use a FriXion eraser to erase.