Double-Wall Vacuum Insulation: Our 20 Oz Tumbler Uses Double Wall Vacuum Insulation Technology, Which Can Keep Drinks Cold For 12 Hours And Hot For 6 Hours. You Can Give It As A Birthday Gift Or Christmas Gift To Your Loved Ones | | 20 Oz Stainless Steel Tumbler: Made From High-Quality 18/8 Food-Grade Stainless Steel, Our Dad Tumbler Is Durable And Rust-Resistant. It'S The Perfect Container For Coffee, Juice, Beer, Or Even Wine, Making It An Ideal Birthday Or Christmas Gift For Dad | | 20 Oz Tumbler With Lid And Straw: Our 20 Oz Coffee Tumbler Comes With A Bpa-Free Leak-Proof Lid, Straight Straw, Bent Straw And Straw Cleaning Brush. Simply Push The Lid To Drink Directly Or Use The Straw, Making It Very Convenient | | Christmas Gifts For Dad: This 3D Printed Coffee Cup Has Interesting Patterns And Words Printed On It, And Comes With A Well-Designed Packaging. It Is A Great Christmas Or Birthday Present To Express Gratitude To Your Father | | Travel-Friendly Design: Our Trave.