Hey business owners and event planners! These custom tumblers are absolutely perfect for promotions, gifts, or group events. You get a set of 50 stainless steel tumblers with a practical 16oz capacity that's just right for smoothies, iced coffee, soda, or any hot or cold beverages. The double-wall insulation is seriously effective - I've tested these with both hot and cold drinks, and they maintain temperature for hours. The color grip design is not only stylish but functional too, with a colorful plastic liner, color-matching band on the tumbler body, and color-accented slider on the black lid. The spill-proof lid mechanism works great for on-the-go use, and the narrow bottom fits perfectly in car cup holders. What makes these special is the customization option - you can add your logo, brand name, or special message printed right here in the USA. We used them for a company event, and they were a huge hit - people actually kept and reused them, which means ongoing brand exposure. The construction feels premium and durable, not like those cheap disposable cups. They're perfect for offices, schools, sports teams, weddings, or any gathering where you want practical yet promotional items. The red color is vibrant and professional-looking, but they come in other colors too if that's not your style. Cleaning is easy since they're dishwasher safe, and the materials are food-grade safe. If you're looking for promotional products that people will actually use and appreciate, these tumblers deliver amazing value and functionality. They've become our go-to client gifts and event souvenirs because they're useful, well-made, and great for brand visibility long after the event is over.