Description Swigs Blacksmith collection is crafted with hammered details and a sophisticated satin black finish Slip-free scratch-free noise-free silicone bases Triple Insulation Technology double-walled vacuum-sealed and copper-plated Includes BPA free lid with removable slider 1 Cold 12 hours hot 3 hours Condensation free and nonbreakable 5mm 304-188 stainless steel BPA Free Hand wash