ZENO Cereal Storage Containers 4 PCS | Cereal Containers Dishwasher Safe | Storage for Cereal, Pasta, Rice & Dry Foods | Airtight Food Storage Container | Holds 4 Litres

First Impressions & Context While these are technically designed for cereal, I bought this 4-piece set for a completely unconventional use: storing my 1kg 3D printer filament spools. After drying out my filament in a heater, I need somewhere truly reliable to keep it moisture-free until I am ready to print. These containers turned out to be the absolute perfect dimensions. I can confirm that both SUNLU and Creality 1kg spools fit perfectly inside, and they should be fine for most other standard brands too. Performance & Real-World Testing The airtight performance on these is honestly incredible. I drop a 1kg spool inside along with a desiccant bag and a little digital hygrometer, clip the four latches shut, and store it away. To give an idea of how well they seal, I have had a few spools locked away in these since around Christmas. Months later, the hygrometer inside is still reading a bone-dry 10% humidity, and my colour-changing desiccant beads are still bright orange, proving that no ambient air is leaking in. They do a far better job than standard vacuum bags which inevitably leak over time. My only minor complaint is that I wish they were a bit cheaper so I could afford to buy a set for my entire filament collection! The Bottom Line If you are a 3D printer user looking for a robust, stackable, and genuinely airtight dry-box solution, these are fantastic value for money. They completely solve the issue of filament hydration, seal flawlessly for months on end, and are highly recommended.

I bought these for mum as her old ones weren't air tight. These were good value, and replaced her various sized/shaped ones with a nice uniform set. She seems pleased with them, and reports that they were good value for money.

As advertised

These containers seem good value for money. I’ve only had them a few weeks so can’t comment on how long they last but so far they are proving useful, seem airtight and leakproof. I have had similar before which were just slightly slimmer, so taking up less room in the cupboard but if space isn’t a problem, should be happy with these.

Great for storing 1kg reels of 3d printing filament.

Having tried a few of these over the years, these are one of the easiest to fill, the tabs make a refreshing break from having to tear open a clip sealed one. The "spout" opening is easy to open too, however, it would have been nicer having it a bit closer to the edge so you could properly empty it when you get to the last bits. They appear suitably air/water tight so should keep your food fresh for some time.

Smaller bottom than top. They are really big and take up a lot of room. They do seem to keep cereals etc fresh and it is good that you can open the small door to pour. I would have preferred a shape which did not seems so 'gappy' when they are next to each other on the cupboard shelf.

Perfect storage containers