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

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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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.

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