Create Your favorite tumbler! Tumblers are 20 oz and made from stainless steel. *THIS IS NOT A TAPERED TUMBLER* Send the PNG you want to be added to your cup to Lavagetumblers@gmail.com, and we will create it for you. A sample cup option is also available if you want an image modified. 20oz Stainless Steel, Double Wall Vacuum, Sliding Spill-Proof Lid, Cup for Hot and Cold Liquids. Straw Included. * Double-walled vacuum insulation * Enjoy your favorite drink with this insulated slim tumbler cup all year round. * VACUUM INSULATION: With double-walled vacuum insulation technology, the stainless steel travel tumbler can keep your beverages hot for 5 hours and stay cold for 9 hours; enjoy your favorite drink with this insulated slim water tumbler all year round. * HIGH-QUALITY MATERIAL: These insulated travel tumblers are made of high-quality and food-grade stainless steel, durable, lightweight, lead-free, unbreakable, and easy to clean.