Feature:1. PREVENT CONSUMABLES OXIDATION AND KEEP DRY: All 3D printer consumables are hygroscopic, resulting in absorption of water from the air, which cause loss up oxidation, and water cause wire drawing, clogging, and poor adhesion. The consumables bag eliminates this problem by using a vacuum double seal to completely remove all air, preventing any water from affecting your 3D printed consumables2. IDEAL STORAGE FLEXIBILITY AND COMPATIBILITY: Consumable vacuum storage bags are 34cm by 30cm in size and can hold up to 2 reels in 1 bag or only 1 reel in 1 bag, giving you the flexibility to store the filament of your choice. Designed for 3D printer consumables, compatible with all 0.5kg, 0.75kg, 1kg, 2kg reel consumables and 1.75mm, 2.85mm, 3mm consumables, can also store food, pet supplies, clothing and other materials3. POWERFUL SUCTION: The suction is higher than all hand pumps on the market. You will seal filament storage bags easily, quickly and efficiently in just a few seconds. Use an automatic pump to remove air and water and keep the filament dry effectively4. SAFE MATERIAL: The filament vacuum bag is made of food grade PE and PA composite material, which is safe, 0.09mm thickened material, long lasting and recyclable; Designed for 3D printer wire, can also be used for food storage or other5. REUSABLE DESICCANT: 3D printer filament storage bags vacuum kit with pure silicone desiccant for the strongest water absorption properties. Can absorb more than 40% of its own weight in water. After absorbing water, the desiccant can be dried in the oven or microwave oven to return to original state, and then reused in the filament storage bag6. WATER AND DUST PROOF: The filament storage vacuum bags apply double seal zipper and single side embossed design which are water proof and dust proof to ensure the printing quality of consumables. Microporous design of vacuum bags which can fastly drain air within 30s to ensure sealing better than othersSpecification:Item Type: Filament Storage Bags Vacuum KitSize: Approx. 34 x 30cm / 13.4 x 11.8inPump Voltage: 5VPower: 3WPump Battery: 1 x Rechargeable lithium battery 400mAhPump Motor Model: 280Vacuum Suction: 50-60KPApplication: For all 0.5kg, 0.75kg, 1kg, 2kg roll consumables and 1.75mm, 2.85mm, 3mm consumables.Package List:20 x Vacuum Bag 34x30cm2 x Clamp20 x Desiccant Pack1 x Pump1 x Data Cable1 x User Manual