Features: 3D printer dilament storage kit allows you to protect your filaments from moisture, dust, insects, mold, odor, etc.it will be in the best condition to print. It is much easier to draw the air out of the vacuum bags with hand pump, easy to operate. With dry and wet dual-purpose, dust and moisture-proof. Effectively prevent 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're not using it. And can be reused many times. The "bite in" clip chain can lock the pocket firmly with one 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 Piece Hand Pump Type B 1 Piece Vacuum Sealing Bag Type C 1 Piece Hand Pump +1 Piece Vacuum Sealing Bag Type D 1 Piece Hand Pump + 5 Piece Vacuum Sealing Bags Type E 1 Piece Hand Pump +10 Piece Vacuum Sealing Bag Type F 1 Piece Hand Pump +20 Piece Vacuum Sealing Bag Package Includes: Type A 1 Piece Hand Pump Type B 1 Piece Vacuum Sealing Bag Type C 1 Piece Hand Pump +1 Piece Vacuum Sealing Bag Type D 1 Piece Hand Pump + 5 Piece Vacuum Sealing Bags Type E 1 Piece Hand Pump +10 Piece Vacuum Sealing Bag Type F 1 Piece Hand Pump +20 Piece Vacuum Sealing Bag note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.