eVacuum 3D Printer Filament Storage Kit Filament Vacuum Bags Vacuum Compression Storage Bags, Prevent and Monitor Moisture - 10 Bags with 15 Desiccants, 15 Humidity Indicator Cards and 1 Hand Pump

Bags a good size to fit 1kg roll of filament, bags seal easily at top and pump works well to extract air from bag and bags stay sealed. How many times they can be resused is unknown as have not had them long but bags and seal at top are robust.

Don't be put off by the bad reviews, they just haven't figured out how to use the pump, and to be fair there are no instructions in the box... When used correctly it's a great product with an air-tight vacuum seal.To use:1. Bag the filament2. Seal the top with the tool provided, place it on a flat surface. Don't try to peel anything off the valve or remove the rubber gasket from the end of the pump. Do not prick holes in the valve as others have said...3. Put the pump firmly on the valve, pressing it down onto the flat surface and start pumping. The underside of the bag is textured to allow air out even as you're pressing the pump down. You do have to pump quite a lot to fully remove the air.4. With the air removed, lift the pump and press down on the top of the valve to ensure it's fully resealed.Each step is shown as a picture in the Amazon listing

Got these expecting them to be all good, but the pump turned out to be useless and the valves on the bags did nothing. After much consideration I made two pin picks in the membrane of the valve of one of the bags and used my home vac to suck out the air, it works and sealed it by sticking a piece of clear tape over valve. So far its stayed sealed. The bags are goodish quality with good top seals. Don't buy unless you follow this idea or just buy a vac bag.

A good vacuum seal kit. everything as described.

The quality of the bags and the seal achieved is excelent

Damn the pump and valves are TERRIBLE...wish I read the reviews before I ordered,do yourself a favour and order the proper vacuum bag that you can do with hoover as they come with hand pump aswell

These worked for me I have had them sealed for months and they hold a vacuum.

It works, is easy to use and was decently priced, that's all I really cared about.The pump doesn't seem too fragile either, no idea how some people were breaking them unless they either got unlucky and got a faulty one or went full 200lb gorilla on theirs.No instructions included though, but just zip the bags up with one of the clips and press the pump into the vent hole and go at it until you're satisfied or it starts to get more difficult. Sometimes the vent isn't fully compliant right away, but a few pumps in and it'll usually give way and become noticeably easier. Takes me about of minute to get most of the air out before it starts to get difficult and I stop.Pictured spool brand is AMZ3D for those possibly wondering.

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Bra

Ich nutze diese Vakuum Beutel für die Rollen meines 3-D Druckers. 1 kg Rollen passen hier problemlos rein. Das entleeren der Luft mittels der mitgelieferten Vakuumpumpe funktioniert einfach. Bei Bedarf werde ich mir wieder einige dieser Vakuum Beutel zulegen.