Features of Drink in the Box:
• Volume: 8 oz (236 ml)
• Square shape fits well into lunch boxes
• Made from BPA-free Tritan
• Phthalate-Free
• Dishwasher Safe
• Translucent Body
• Polypropylene Straw
• 100% Silicone Seal & Spout


Here are some helpful videos:

Thorough WEEKLY Cleaning of your Drink in the Box

How to clean your Drink in the Box DAILY

How to remove the button with a fork