Durable Stainless Steel: Our 12oz tumbler is made from sturdy stainless steel, ensuring longevity and daily use. Its wide mouth is rust-resistant and easy to clean, making it a reliable choice for any drink. Effective Temperature Retention: With double wall vacuum insulation, this tumbler keeps beverages at the perfect temperature, ideal for both hot and cold drinks throughout the year. Customizable Sublimation: The premium sublimation coating allows for vivid, long-lasting designs. The straight body is perfect for wrapping with personalized graphics, offering a stylish and unique gift option. Innovative One-Touch Straw: The new lid design features a one-touch pop-up straw for a convenient, one-handed drinking experience. Comprehensive Package: This set includes 24 thermos flasks and lids with straws. The 2.7-inch diameter cups are easy to grip, providing a practical and valuable option for multiple users. Lilsofee Sublimation blank Thermos allow you to design your own unique tumbler cups, which won't be foggy and fade. Just print your design and add some fun to your life! Features 1. Quality sublimation coating for thermal transfer; 2. Splash-proof Lids& straws; 3. Keep your beverage cold for a long time; 4. Fun sublimation diy project; 5. Individually packaged; Steps (1). Select and print the design you want; (2). Close to the sublimation paper, and then wrap it on the sublimation glass cup; (3). Full wrap film with heat shrinkable film, 334℉, tumbler press for 50-100s; Oven for 6-10 mins, get a well-printed glass cup; Specification Material: 304 food-grade stainless steel Capacity: 12oz Color: Blank white cup,mixed color lid Usage: Cold drinks like juice, lemonade, fruit infused water,iced tea, iced coffee, punch, sangria, etc. Package List: 6* 12 oz sublimation blanks skinny tumbler; 6* BPA-FREE splash-proof sliding lid; Our Service Please feel free to contact us if you have any problem, we will do our best and provide the most professional service for you.