The Energel Infree Gel Pen from Pentel uses their proprietary Energel ink for a smooth and fast-drying experience.
The clear body lets you keep an eye on ink levels and is made from 54% recycled plastic. The comfortable grip was intended for a stress-free and comfortable writing experience.
In the images of pen swatches, the colours are ordered (from top to bottom):
Full sets of 10 are available.