The SWAIL design concept is to design the most primitive state of a pen in a minimalist way.Through rigorous design thinking and scrutiny, the product finds the best balance point in brand, price, aesthetics, technology, materials and crafts. In addition to the basic functions of writing and storage, the soft touch of rubber paint and silicone gives the user a comfortable writing experience.The refills are made of the original German imported beaded refills (0.5mm), available in blue and black.