The PLATINUM BISO Fountain Pen in Sparkle Mint Green represents a harmonious blend of Japanese craftsmanship and contemporary design philosophy. Derived from the Japanese characters for "beauty" and "harmony," BISO embodies the brand's commitment to elevating the writing experience into a moment of personal expression and mindfulness. This limited edition fountain pen distinguishes itself through thoughtful engineering. The body utilizes premium pearlescent resin that shifts subtly across the color spectrum depending on viewing angle and ambient light—a sophisticated visual characteristic that makes each pen uniquely captivating. Weighing just 18.4 grams with a refined 12.7mm diameter, the BISO delivers exceptional comfort during extended writing sessions, whether for daily correspondence or formal occasions. The pen's construction combines precision metalwork with quality resin components. The gold-plated stainless steel nib—available in Fine or Medium—ensures consistent ink flow and responsive writing performance. Metal accents including the cap top, barrel end, cap ring, protective ring, and clip provide durability and refined aesthetics. At 138mm in full length, this pen strikes an ideal balance between portability and control. The BISO transcends functional writing instruments to become a companion that encourages deliberate, mindful expression. Perfect for discerning writers who appreciate Japanese design sensibility and superior craftsmanship.