[-60KPA POWERFUL SUCTION] Higher suction power than all electric pumps on the market. You filament storage bags easily, quickly, and efficiently. Use our handheld vacuum pump to expel air and moisture, keeping your filament dry and effective. [DESIGN FOR 3D FILAMENT STORAGE]Plus Size Bags are Compatible with a Wide Range of Filaments: 32 x 34cm(13.4 x 12.6in)vacuum bag is compatible with 0.5KG/0.75KG/1KG filament and 1.75mm/2.85mm/3mm filament. It can also be used to store other printing consumables. [SUPER STRONG LIGHT-SHIELDING SEALING BAG]Vacuum bag with a black transparent color combination. One side is convenient for identifying the product, and the other side can avoid light to reduce filament wear and tear. [PERFECT PROTECTION FILAMENT]Reusable vacuum bags with upgraded air valve, apply a double seal zipper design, which is waterproof and has no layer shift to the printing quality of consumables. More and less prone to leakage.