Our say what? Insulated lowball tumblers will keep drinks cold for hours! 
These double-walled, stainless steel tumblers are vacuum insulated and include a leak and shatter-proof removable plastic lid with slide closure. 
Bright, matte color tumblers feature witty sayings and make perfect gifts or souvenirs for friends, family, or coworkers. 
Keeps iced beverages cold for up to 9 hours and hot for up to 3 hours. Use for wine, coffee, or to enjoy a refreshing cocktail. 
Hand wash only. Not microwave safe. Bpa, lead, and phthalate-free. Fda approved.