100% stainless steel lining to prevent discoloration. Copper exterior is protected with a proprietary food grade lacquer to help it withstand tarnish, rust or stain. Safe for all drinks both alkaline and acidic unlike copper!
100% Handcrafted Mug Set: Handcrafted and polished hammered copper mugs combine traditional craftsmanship and modern technology. Each copper mug is unique with its own hammered pattern. Rose gold surface looks shiny, vintage and elegant.
Smooth Rounded Rim: Copper cups feature a smooth rounded rim, premium quality, smooth and food safe. No harmful chemical coatings. No sharp and rough edges. It’s designed to enhance your drinking experience!

Features:
Double-wall construction
Stainless steel lining
Hammered design
Smooth edge
Tarnish resistant
Welded handle