Moscow Mule Copper Mugs Set - 4 Authentic Handcrafted Copper Mugs (16 oz.) with 2 oz. Shot Glass, 4 Straws, 4 Solid Wood Coasters and Recipe Book - Gift Box IncludedSAFETY TESTED LACQUERED FINISH All the copperware is lined with safety tested lacquered finish to prevent tarnish. ARTISANALLY STRUCTURED 16 oz. solid mugs are perfectly balanced with handles welded on, handmade by skilled craftsmen. 100% COPPER These original copper moscow mule mugs are made from 100% copper, with no nickel, steel or tin fillings in order to avoid fracture. BEST DRINKING EXPERIENCE Hammered copper mugs provide stability in