Crafted with precision and designed for daily sophistication, the Quantum Core – 100% Artisan-Crafted Full-Grain Leather Cardholder – Copper Brown , Dharavi, Mumbai, Maharashtra embodies exquisite regional leather craftsmanship. Handmade by master artisans in Dharavi, Mumbai, Maharashtra, this accessory highlights refined textures and exceptional pocket utility. Presented in a rich copper brown shade paired with the distinct quantum core design pattern, it uses premium leather that develops a magnificent personalized patina over time. Built for modern convenience without compromising on traditional elegance, it offers a slim profile, secure organization, and enduring durability.