CopperBull Thickest Heaviest Hammered 1 mm Copper Mug Cup Set for Water Moscow Mule Ayurvedic Healing,20 Oz (4X) Thickest Heaviest Hammered Copper Mug Cup/Set 100% Handmade in Turkey. These are the thickest&heaviest copper tumbers you can find on the internet. Copper Thickness : 1 MM , Copper Weight:11 Oz Approx. Capacity: 20 Oz