Leberna 34 oz Stainless Steel Vacuum Thermos Flask - Ounce 1000 ml - Double Wall Insulated, BPA FREE, Food Grade Material - Bottle Hot Water Coffee Cold Beverage Drinks - Fit Briefcase Purse Handbag Thermos carries up to 34-ounce. The diameter of the bottom of Vacuum Flask is 3.3 inch (8.4 cm). The height of Vacuum Flask is 12.6 inch (32 cm). Easy twist off lid prevents leaks; There is a screw cap on the lid. Please refer to last image. The screw cap need to be tightened (screwed) clockwise securely. Otherwise, the lid will leak when pouring liquid. Thermos keeps hot liquids warm for up to 12 hours, and cold drinks cool for 24 hours. BPA Free, FDA Approved Food Grade Stainless Steel Inside and Out. Double Wall Vacuum Insulated Interior and Exterior. Dishwasher safe. Or simply rinse with warm water. Limited Lifetime Warranty. Use Stainless Steel Vacuum Flask to hold your hot or cold beverages. Leberna only use FDA approved Food Grade Stainless Steel to make Vacuum Flask. It is FPA FREE and better than plastic bottles. Money saving in the long run. Most of all, you are helping our environment.