Feature:1. Prevent Oxidation: All 3D printer consumables are known to absorb water from the gas, which can cause oxidation of the consumables, leading to straining, clogging and poor adhesion. Our bags use a vacuum double sealed to completely remove all gas and prevent any water from affecting your 3D prints.2. Ideal Storage Flexibility: Our vacuum bags can hold up to 2 reels in 1 bag or just 1 reel in 1 bag, giving you the flexibility to store the filament of your choice.3. Comes with A Hand Pump: Our vacuum sealed bag kits can be used with any conventional vacuum er to remove gas. That said, all of our bags include a free hand pump that allows you to expel gas.4. High Compatibility: This 3D vacuum bag is designed for 3D printer consumables and is compatible with all 0.5kg, 0.75kg, 1kg, 2kg reel consumables and 1.75mm, 2.85mm, 3mm consumables.5. Applicable Scenarios: This vacuum bag can be used not only for 3D printers, but also for storing food, pet supplies, clothes and other materials.How to Use:Direct to use.Specification:Item Type: 3D Printer Filament Storage BagsMaterial: PE and PPSize: Approx. 34 x 30cm / 13.39 x 11.81in Compatible: Compatible with all 0.5kg, 0.75kg, 1kg, 2kg reel consumables and 1.75mm, 2.85mm, 3mm consumables Package List:10 x Vacuum Bag1 x Hand Pump 1 x Sealing ClipNote:Manual measurement may have 0‑1cm error. Please make sure you don't mind before ordering.