Custom 16 Oz 360 sip stainless steel tumblers would allow your customers and employees to enjoy their drink minus spill embarrassment. All they have to do is hold the tumbler and press the silicone button centered over the lid and the beverage will straightly end up in a mouth. These stainless steel tumblers feature a dual wall construction with a plastic interior liner and stainless steel exterior. There is a screw-on lid and an optional screw –on leak guard, too. Request a quote to know what you can save on ordering these promotional 16 Oz 360 sip stainless steel tumblers in bulk.