The Delta Bio+16 Fountain Pen is crafted from 100% certified organic protein-based material, offering an eco-friendly alternative without plastic. Each pen features 16 polished facets for a comfortable grip and elegant look, complemented by 24-carat gold-plated accents. With a stainless steel nib and a hand-engraved solid bar clip, this pen combines Italian craftsmanship with sustainable design. Though not limited edition, careful production over six months ensures exclusivity and quality in every numbered piece.