Features: 3D printer filament storage kit allows you to protect your filaments from moisture, dust, insects, mold, odor, etc. It will be in the best condition for printing. It is much easier to draw out the air from the vacuum bags with a hand pump, easy to use. With dry and wet dual use, dust and moisture-proof. Effectively prevents consumables from oxidation and moisture-proof under vacuum environment. Made of high-quality multi-layer composite materials, recyclable and durable. SPU: Vacuum bag is a great way to solve this problem by keeping the filament in vacuum storage when you are not using it. And can be reused many times. The "bite in" chain can lock the pocket securely with a pinch. Specifications: Item Type: Filament Storage Bag/Hand Pump Size: approx. 34X30cm/13.38X11.18in Material: TPU+PLA Applicable Scene: 3D Printer Type A: 1 pc Hand Pump Type B: 1 pc Vacuum Sealing Bag Type C: 1 pc Hand Pump + 1 pc Vacuum Sealing Bag Type D: 1 pc Hand Pump + 5 pcs Vacuum Sealing Bags Type E: 1 pc Hand Pump + 10 pcs Vacuum Sealing Bags Type F: 1 pc Hand Pump + 20 pcs Vacuum Sealing Bags Note: Due to light effect and shooting angle issues, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to manual measurement. Package includes: Type A: 1 pc Hand Pump Type B: 1 pc Vacuum Sealing Bag Type C: 1 pc Hand Pump + 1 pc Vacuum Sealing Bag Type D: 1 pc Hand Pump + 5 pcs Vacuum Sealing Bags Type E: 1 pc Hand Pump + 10 pcs Vacuum Sealing Bags Type F: 1 pc Hand Pump + 20 pcs Vacuum Sealing Bags