Let Your Tumbler Do The Talking

Are you tired of people asking you to explain engineering math problems to them? Just point to this and let it do the talking for you. For engineers, mathematicians, and anyone who doesn't like to be bothered with simple math. It's the ultimate solution to all your equation frustrations. And if you can't solve this math problem, don't worry, you're not alone. This is for the brave souls who dared to enter the world of engineering and survived to tell the tale.

• Vacuum Insulated Stainless Steel Tumbler: This travel tumbler maintains the temperature of your favorite hot or cold beverage like a champ, thanks to its double-wall insulation. It is vacuum insulated for 2X cold and heat retention compared to glass or plastic containers. Uses food-grade stainless steel very safe to use. The removable clear lid can keep your drink's temperature for extended hours making you enjoy your drink more. Perfect to use at home, kitchen, office, work, or school.
• Top Grade Quality: Drinks stay cold for 24 hours and hot for 12 hours perfect for on-the-go hydration. Has a premium powder coat that provides crisp vibrant color reproduction, it will always look brand new even for years. Double-wall insulation keeps the exterior sweat-free so you won't have to worry about the tumbler becoming slippery when holding, your bags staying dry, or leaving water rings on your table. We use food-grade 304 Stainless Steel BPA-free, will not rust, and are safe to use.
• Includes Straw and Cleaning Set: Healthy stainless steel straw alternative to disposable straw. Because they come with brushes, washing with soap and water is a snap.

Normally it would take 3-5 days for our print-on-demand mugs to be shipped. We print after you place your order as we do not have a giant warehouse to store each mug. Every single item is custom-made with much detail and attention.

After we ship the order, it would take another 3-5 business days to get delivered if you live in US. We recommend placing the order 2 weeks before any specific date that you might need it.