✅ 【Dual-Size Vacuum Protection】 15 bags of 30x34cm & 15 bags of 33x38cm provide perfect fits for both standard 1KG spools and larger filament rolls. The 18-silk PA+PE material with double-layer zipper ensures complete airtight sealing against moisture and dust.
✅ 【Enhanced Moisture Control】 Includes 30 reusable silica gel desiccants (50% more than standard kit) and 8 reinforced zipper clips for superior humidity protection. Ideal for high-volume users or humid climates.
✅ 【Professional Electric Pump】 500mAh electric pump (with charging cable) creates a vacuum in seconds—no manual effort needed. Perfect for workshops with multiple spools to seal.
✅ 【Premium Durable Material】 BPA-free PA+PE composite (18-silk thick) resists punctures and is safe for PLA/ABS/PETG/TPU/nylon. Suitable for daily use in schools or factories.
✅ 【Complete Pro Kit】 All-inclusive: 30 bags, pump, 30 desiccants, 8 clips, static-proof storage bag. No extra purchases—ready for commercial-scale storage.