Enjoy your favorite brews on the go with TOMO Coffee Mugs! Crafted from premium 304 stainless steel with sparkling glass crystals, these glamorous tumblers are crafted for the perfect cuppa wherever you are - at work, on trips, or at home. Double-wall vacuum insulation keeps your coffee piping hot and iced teas chilled for 8-12 hours. Its easy twist-on, thumb slide lid reveals two ways to enjoy your drinks - a smaller opening for straws and a wider one to sip straight from the source. Pick from four stunning colors and savor delicious drinks wherever your roaming heart takes you. Key Features: Capacity: 19oz/ 550ml Premium Grade 304 Stainless Steel  Leak-Proof, BPA-Free PS Lid Press-on, Slide-Open Lid Design Double-Wall Vacuum Insulation Keeps Drinks Hot/ Cold for 8-12 Hours Clear Lid Design to Check Liquid Levels Condensation-Free Exterior Upper Temperature Tolerance: 100℃/ 212℉ Embellished with Sparkling Glass Crystals