Designed to unleash creativity and set your inspiration free. the stylish Pentel Infree is perfect for writing down your ideas. It features smooth. vibrant EnerGel ink. which dries quickly and is great for lefties. The pen's refill is contained in a clear barrel so you can always see which color you're writing with. The Pentel Energel Infree is perfect for left-handers because the ink dries extremely quickly. which means less smudging.