-Funny DIY Design and Sublimation:Each blank tumbler for sublimation is individually boxed and contains 30 x 12 oz sublimation tumblers, simple blank tumblers allow you to creatively DIY your art ideas and add some colors to your life.-Leak-Proof Straw Lid & Straws: Pop-up straw lid with a spill-proof valve and leak-proof thickened seal ring that prevents water spills. Vacuum design, good airtightness, leak-resistant, and reusable. With a straw inside, easy to drink with the push of a button. Its unique design makes gripping easier for kids, and easy to carry anywhere. It is very suitable for your children to use in school, travel, party, camping, and outdoors.-PREMIUM SUBLIMATION COATING: Our products are odorless and shatterproof. Every batch undergoes rigorous testing. The sublimation tumblers 12oz are crafted with 18/8 304 stainless steel and evenly coated with a polymer sublimation coating for the smoothest application and vibrant, full-color printing. The perfect blank cups for your unique and personalized designs.-VACUUM INSULATED TUMBLER: Double-walled vacuum stainless steel provides a good ability of insulation to ensure that the water tumbler keeps any drinks hot for 6+ hours or cold for 12+ hours. Moreover, wide-mouth design for easy cleaning.-Creative Gifts: This sublimation water bottle can be customized according to children's hobbies pattern. It is very suitable for Christmas, Halloween, Thanksgiving, birthdays, and go-to-school gifts. You can design beautiful cartoon patterns on the sublimation mugs, bright colors without blur, suitable as a unique customized gift for kids12ozPlantsStainless Steel