What grade of stainless steel is used in the tumbler 40oz 2 in 1 lid?

The tumbler 40oz stainless steel 2 in 1 lid features exceptional material quality:

• 18/8 Grade: 18% chromium, 8% nickel for maximum durability
• Food-Grade Certified: Safe for all beverages, hot or cold
• Rust-Proof: Will never rust or corrode, even with daily use
• Flavor Neutral: Stainless steel preserves pure taste
• Professional Quality: Same grade used in commercial kitchens

This makes your tumbler 40oz stainless steel 2 in 1 lid an investment that lasts generations.