Onyx stainless steel airtight round container 10cm 350ml

from 9 reviews
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Onyx stainless steel containers are airtight and made from the highest quality, food grade 18/10 stainless steel.  Freezer safe, oven safe (without lid) and BPA free.

Onyx Official Stockist

Onyx stainless steel containers are airtight and made from the highest quality, food grade 18/10 stainless steel.

This versatile container is excellent for packing a healthy, waste free lunch or home food storage. It has a silicone seal in the lid to make it completely airtight for freshness. The whole container is freezer safe, and the bottom section is also oven safe (without lid).

you are making a difference:

  • Pack a waste and plastic free lunch with reusable lunchware instead of disposable alternatives.
  • Stainless steel is 100% recyclable at the end of it's useful life.
  • Buying responsibly made products that are made to last a lifetime


  • Highest quality food grade 18/10 stainless steel
  • Easy clip-lock lid with an inner silicone seal
  • Airtight 
  • Freezer safe
  • Oven safe (without lid).  Stainless steel is NOT microwave safe.
  • Record details on the stainless steel with a non-permanent marker that can be washed off
  • Dishwasher safe container base, hand wash lid


11cm W x 5.5cm H, 350ml capacity.  All measurements are approximate.

US company. Made responsibly in Korea

Browse our other Onyx stainless steel containers

We are shipping orders in 1 to 2 working days.  Express orders placed by 10am are sent same day.  Please note that Australia Post is taking longer than normal to deliver, including express is not always next day.  Thank you so much for supporting us.

45 day returns: If you are not satisfied with a product that you ordered online (*exceptions below), you are welcome to return it to us within 45 days, unused, unworn, and in a pristine saleable condition with the original labels attached, packaging and we will refund your cost of goods - you can either post back to us or return to one of our stores. Items marked 'Final Sale' can not be returned unless faulty.

*with the exception of skin and body care, makeup, food, underwear, earrings, and custom order items, which can not be returned for change of mind.

Standard: Normally our orders leave within 24 hours from Brisbane (Monday - Friday). Orders will arrive in 2 to 7 days depending on destination. Standard Australian shipping is free on orders over $75. Shipping for orders under $75 is $9.95, or $6.95 for delivery to SE Qld postcodes 4000-4299, 4500-4549.

Express: place orders by 10am. Orders generally arrive next day if you are in the Australia Post Next Day Delivery network and subject to Australia Post fulfilling its guarantee. Only available for orders up to 4kg (excludes bulky/heavy items such as Bokashi bins, cleaning products and large size items to areas outside Brisbane unless you wish to pay the total Australia Post Express Post charge).

Click & Collect: simply choose your store pick up location at checkout and we will arrange for your order to be there within 3 to 4 working days (1 working day for Milton warehouse) for free. Please wait until you receive an email or text to advise that your goods are ready to be collect.

International: Flat rate shipping from $15 for orders up to 2kg. We ship to NZ, USA, Canada, UK/Ireland, China, Europe (EU) and other countries. International orders are not subject to sales tax, so most prices are less 10% when purchased from overseas. The final cost of shipping is shown at checkout once you have added your delivery location.

See full details on shipping here >

Durable, good quality

This is a handy size for office snacks; keeps nuts and dried fruit airtight. The clamps secure well and have never come undone in my bag. These containers are light-weight, durable, and good quality. The bowl can go in the dishwasher; do wash the lid by hand.

 – 15 Aug. 2019

perfect little size for my lunch

great quality! it hasn't leaked yet but if something else in my bag grabbed onto the clip it could open it enough for it to leak BUT IT HASN'T HAPPENED YET. This size is good for my lunches, because I am not a big eater. I take dahl and a bit of rice in this and its a perfect size. I have the bigger one too for large salads, but never fill it. I'm a 65kilo woman who tries not to overeat, if that helps.

 – 20 July 2019

Great little bowl

I find these bowls are largely leak-proof except if it is the consistency of water - soup, for instance, is fine. The snap-locks are durable, the bowl and lid wash easily. I love them and have a variety of sizes for all occasions. It is easy to over-estimate their size, however, so I suggest 400 ml + for a lunch salad or leftovers.

 – 28 Apr. 2019

Onyx containers are the best

I love the onyx containers, I have several. I find this size great for small dense salads and pastas, and my child can easily undo the clips for the lid. Having them dishwasher and oven safe (ex lid) is wonderful.

 – 08 Apr. 2019


We use this for everything from buying our wet products (meat, cheese, etc.), to carrying snacks, to carrying compost when we are travelling. It's leakproof and really sturdy.

 – 04 Jan. 2019

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Please be aware that due to the size and weight this product attracts a postage surcharge.

Further details are provided on the product listing.