Product Description
Roughneck stainless steel vacuum sealed tumblers and insulated holders keep your drinks cold or hot for longer at a price that doesn't hurt your wallet! Why does it work so well? Double layer stops heat transfer from conduction, Vacuum insulation stops heat transfer from convection and reflective copper stops heat transfer from radiation. These are Roughneck built for life out of 18/8 Kitchen Grade stainless steel. Tumblers come with a removable lid. -- Quality made and enjoyable to use, make some of these Roughneck cup and coolers yours today!Feature
Roughneck insulated cups keeps drinks hot for 7 hours or longer and cold drinks cold for 18 hours or longer