Introducing the Rhinestone 40oz Tumbler, crafted with premium 18/8 stainless steel and featuring triple-wall vacuum insulation with a copper lining for top-tier temperature retention. Whether it's hot coffee or iced tea, this tumbler ensures your beverage stays at the perfect temperature. BPA-free and designed for versatility, it includes a dual lid for sipping or straw use, fitting effortlessly into your car's cup holder—ideal for home, office, or travel.