YINJOYI Travel Mug Reusable Coffee Cups Thermal Insulated Vacuum Insulation Smoothie Cup Stainless Steel Bottle for Hot Cold Drinks with Lid (Blue, 510ml)

Premium Double Wall Stainless Steel --- Crafted from high-quality stainless steel with a shatterproof design. The travel coffee mug is durable, rust-resistant, and built to withstand daily use for long-lasting performance. Long-Lasting Temperature Retention --- Features double wall vacuum insulation that locks in temperature for hours. The insulated coffee mug keeps drinks icy cold in summer and piping hot in winter, letting you enjoy your beverage at the perfect temperature anytime. Splash-Proof, Dustproof & One-Hand Operation --- Secure screw-on lid with a smooth flip-top opening enables easy one-handed drinking. The flip cover of the coffee tumbler seals the drinking hole tightly, blocking dirt, dust, gnats and other debris when not in use, while preventing spills if the coffee cup is accidentally knocked over. Leak Proof, Ideal for All Commute Scenarios --- Screw-on lid with silicone seal ring stays leak-free even when the travel coffee cup tipped over; just align the lid, press down firmly till it clicks into place, then twist to tighten—great for tossing in bags, cars, office or long trips. The thermal cup lid's inner square and outer circle design ensures effortless twisting on/off for fast refills and convenient cleaning. Fit Most Car Cup Holders --- With a 70mm bottom diameter, the insulated tumbler is designed to fit conveniently in most car cup holders, ideal for on the go. And the middle rubber part ensures no rattling while driving. Comfortable Non-Slip Grip & Base --- The matte, silicone body offers the thermal mug an elegant look and a comfortable grip. The rubber base enhances stability, preventing the coffee mug from sliding or tipping over. Ideal Daily Size for Your Coffee Need --- Available in 12oz & 17oz, neither too big nor too small. Slim, sleek design for effortless carrying during commutes, office, school, travel, sport and all outdoor activities.