ODDITEES Physics Tumbler - Laser Etched 20oz Stainless Steel Cup with 'Resistance Is Not Futile' Design (Blue) - Perfect for Science Geeks, Teachers & Coffee Lovers

This science tumbler text says Resistance Is Not Futile Its Voltage Divided By Current. These 20oz vacuum sealed tumblers are available in 12 stunning colors. They feature protruding rings near the base to add a little more style and set it apart from other tumbler brands. Our tumblers are powder coated then laser etched on one side to reveal the design. With 2x heat and cold retention of a typical plastic tumbler, these double walled vacuum sealed tumblers will keep those hot drinks nice and toasty and those colder drinks perfectly chilled for hours on end. Sweat-free vacuum tumblers include a removable clear lid and make a great travel mug.