BT21 BTS 20oz Tumbler Double Wall 8 Hours of Hot cold BTS Kpop BTS BT21 Valentine Gift, Cute 40oz Tumbler For Lovers & Fans New Limited Edition BTS BT21 Valentine's Day Mystery Bag Etsy Bts Etsy. High Quality Material: Our tumblers are crafted with a SUS 304 stainless steel body and a premium opaque lid. The double wall vacuum insulated design helps keep your drinks at the ideal temperature for 34 hours. The durable color coating resists fading, peeling, and cracking even with extended use, while also providing an enhanced grip. User Friendly Design: We recommend hand washing for easy maintenance. The removable lid twists off smoothly, making filling and cleaning quick and convenient. A Gift for True K POP Fans: This personalized tumbler is a perfect gift for K POP lovers who want to show their passion for music and their favorite bias. Whether its to celebrate a comeback, support a world tour, cherish fandom memories, or simply express love for a K POP idol, this tumbler makes a meaningful and emotional gift for fellow fans, friends, and loved ones who share the same K POP passion. Usage and Care Instructions: Recommend hand washing for easy maintenance. Do not use abrasive cleaners or scrubbing tools. Do not use in the microwave. The removable lid twists off effortlessly for convenient filling and cleaning.