Safe 30oz Stainless Steel Insulated Tumbler

This stianless steel coffee tumbler is firm, rustproof,and it make no harm to human health, without metallic taste. The interior is electro polished. It comes with a leakproof lid. There is a drinking hole in the lid for placing a straw or drinking directly. The sliding lid has a rubber gasket ensures a tihgt fit. So it can be easily closed to avoid leakage and spatter. 30oz Insulated tumbler has vacuum double wall design which ensures a good insulation.