Metallig is an online retailer of components and supplies for jewelry making, with a strong focus on devotional and religious designs. Its catalog serves makers looking for individual findings, decorative elements, materials, and ready-to-assemble kits. Products include crucifixes, crosses, pendants, appliqués, connectors, spacers, terminals, clasps, rings, earring bases, resin pieces, and beads in a range of sizes. Shoppers can also find cords and threads, silk thread, waxed cord, fishing line, rhinestones, glass beads, and packaging, along with tools and other assembly accessories.

Many designs feature Catholic themes, including pieces depicting Our Lady of Aparecida, Saint Benedict, the Holy Family, the Eucharist, and Jesus. The selection includes resin and three-dimensional components, personalized crosses, and items with or without rhinestone details, as well as kits for bracelets and other creations. Metallig presents new arrivals, promotions, and popular products through its online store, where customers can browse and purchase individual items. The site also provides customer contact options by phone and WhatsApp, plus account registration and shopping-cart features.