Shake the heat Korean with cloth sleeve hand warming insulation Cup: material uses 304 stainless steel, 360 ml, a yellow color. Pink. Blue green. Printing Cup cover. But you shake it will pour boiling water, fast heating I, you put it without moving it will slowly cool down again, you shake it will quickly heat Oh, each containing 50, mixed color can also be loaded, large price advantages, printing patterns can also be customized according to customer requirements, a cup body and a cup cover can also print the customer logo.