From the Manufacturer 
OTRON ® Tumbler Double Wall Vacuum Insulated Stainless Steel Travel Mug

Features 
Double wall vacuum insulation maximum temperature retention & insulates hands from the cold 
Keeps ice longer holds ice for up to 24 hours , keeps hot longer for up to 12 hours, works great for ice drink and hot beverages 
18/8 stainless steel strong stainless steel construction 
Sleek design fits most cup holders 
BPA-free. Rust-proof. Dishwasher-safe.

What's in the Box 
OTRON Tumbler Double Wall Vacuum Insulated Stainless Steel Travel Mug, 20 oz. 

Limited Lifetime Warranty 
If this product fails due to a defect in materials or workmanship at any time during the life of the product, OTRON will replace it free of charge. This warranty does not cover products which have been abused, altered, damaged, misused, cut or worn.