Triangle Onigiri Mold & Bento Box – 3-Grid Rice Ball Maker

2-in-1 Triangle Onigiri Maker & Bento Box

Shape perfectly uniform Japanese rice balls and carry them to go — all in one compact tool. This triangle onigiri mold and bento box lets you press three rice balls at once, then snaps shut into a neat lunch container. Whether you're prepping school lunches, picnic snacks, or quick office meals, this clever kitchen accessory makes Japanese-style onigiri fast, fun, and tidy. Made in Mainland China.

Key Features

• 2-in-1 Design: Functions as both a rice ball mold (3 triangle cavities) and a sealed bento carry box — mold, close the lid, and go.
• Hygienic, Hands-Free Shaping: The intuitive press-and-release mechanism shapes your onigiri without direct hand contact, keeping prep clean and quick.
• Food-Safe PP Material: Constructed from high-grade, BPA-free polypropylene — durable, lightweight, and easy to clean.
• Wide Temperature Range: Handles -10°C to 120°C (14°F to 248°F), so you can refrigerate prepped meals or gently warm them as needed.
• Compact & Portable: Measures 21 × 8 × 9.5 cm (approx. 8.27" L × 3.15" W × 3.74" H) — fits easily in a bag, backpack, or lunchbox.
• Available Colors: Stylish Blue and Beige to suit any kitchen aesthetic.

Who Is It For?

This onigiri bento box is perfect for home cooks, Japanese food enthusiasts, meal preppers, parents packing school lunches, and anyone who loves on-the-go eating. It's also a great gift for anyone exploring Japanese cuisine at home.

What's in the Box?

• 1 × Triangle Onigiri Bento Box Mold

Related Kitchen Accessories

Looking for more handy kitchen tools? Check out our 2.8L Beverage Dispenser with Spigot for serving drinks at gatherings, or the Cordless Rechargeable Milk Frother to round out your kitchen essentials.

Learn more: Nutrition.gov on cooking and food safety

Frequently Asked Questions

Q: How do I use the triangle onigiri mold to shape rice balls?

A: Fill each of the three triangle cavities with cooked, seasoned rice, press down the lid firmly to compact and shape the rice, then push from the bottom to release your perfectly formed triangular onigiri. The hands-free design keeps the process hygienic and effortless.

Q: Can I put the onigiri bento box in the microwave or refrigerator?

A: Yes — the mold is rated for temperatures from -10°C to 120°C (14°F to 248°F), making it safe for refrigerator storage and gentle reheating. Always check your specific microwave wattage and avoid extreme high-heat settings.

Q: What material is the onigiri mold made from, and is it safe for food contact?

A: The mold is made from high-grade PP (polypropylene), a widely used food-safe plastic that is durable, odor-resistant, and easy to clean by hand or in the dishwasher.