Stainless Steel Bento Lunch Box – Leak-Proof, Lockable Clips

Take Fresh, Healthy Meals Anywhere — Leak-Proof & Built to Last

Meet your new go-to meal prep companion: the CHANSUNRUN Stainless Steel Bento Lunch Box. Crafted from 100% food-grade 304 stainless steel, this durable, BPA-free lunch box keeps your food fresh, flavourful, and secure — whether you're heading to the office, school, or out on an adventure. Made in Mainland China.

Why You'll Love It

• Premium 304 Stainless Steel: Rust-free, non-toxic, and nearly indestructible. Safe for the whole family and perfect for daily use.
• Double-Layer Leak-Proof Seal: Features a silicone seal ring plus sturdy lockable clips for an airtight closure — soups, sauces, and liquids stay right where they belong.
• Multiple Sizes to Suit Everyone: Choose from Small (350ml), Medium (850ml), Large (1400ml), or XL (2400ml) — ideal for kids' snacks, adult lunches, or meal-prepped dinners.
• Single Compartment, Zero Odour: The open single-compartment design prevents unwanted food odours from mixing and is far easier to clean than divided boxes.
• Dishwasher Safe & Easy to Clean: Matte interior and exterior textures resist fingerprints and wipe clean effortlessly — or just pop it in the dishwasher.
• Thermal Insulation: Keeps hot food warm and cold food refreshingly cool during your commute or school day.
• ECO-Friendly & Reusable: Ditch single-use plastics and reduce waste with a container built to last for years.
• Perfect Gift Idea: A thoughtful and practical gift for friends, family, or classmates of any age.

Specifications

• Material: Food-grade 304 Stainless Steel
• Shape: Rectangle
• Color: Silver (Matte Finish)
• Available Sizes: 350ml / 850ml / 1400ml / 2400ml
• Certification: FCM (Food Contact Material)
• High-Concern Chemicals: None
• Country of Origin: Made in Mainland China

What's in the Box

• 1 × Stainless Steel Bento Lunch Box (size of your choice)

Pairs Great With

Complete your kitchen and storage setup with these popular picks from our store:

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• 1.4W Solar Bird Bath Fountain Pump – 6 Nozzles & Crash Bars

For more guidance on reducing plastic use and making safer food storage choices, visit the U.S. FDA Food Contact Materials resource.

Learn more: List of restaurant chains in the United States

Frequently Asked Questions

Q: Is the stainless steel bento box truly leak-proof?

A: Yes! The box features a dual sealing system — a food-grade silicone seal ring around the lid combined with two sturdy lockable metal clips — creating an airtight, leak-proof closure that prevents liquids, soups, and sauces from spilling, even when carried in a bag.

Q: Can I put this stainless steel lunch box in the microwave?

A: While the box is listed as microwavable per its FCM certification, as a general best practice with metal containers, we recommend transferring food to a microwave-safe dish for reheating if you are unsure about your microwave model's compatibility with metal.

Q: What sizes are available and which is best for adults vs. kids?

A: The bento box comes in four sizes: Small (350ml) — great for snacks or kids' portions; Medium (850ml) — perfect for a standard adult lunch; Large (1400ml) — ideal for bigger meals or meal prep; and XL (2400ml) — suited for family-style portions or all-day meals.

Q: Is this lunch box safe for children to use?

A: Absolutely. The box is made from 100% food-grade 304 stainless steel with no BPA, no toxic chemicals, and no harmful substances — making it a safe and durable choice for kids' school lunches.