Package Includes: 2 Pcs black clear plastic storage Bags with zipper handles 1 pcs medium book storage box (25 × 24 × 31cm) 1 pcs large book storage box (38 × 24 × 32cm) to meet daily book sorting file collection and household storage arrangement demands Premium Material: The foldable stackable moving boxes are constructed from pvc material for stable long term daily use and durable repeated application Dual Size Matching Structure: Mixed size heavy duty clear plastic storage bags combination with lightweight sturdy housing for different volume item organizing tasks Scene Matching Design: Multi dimension clear plastic storage bags structure supports freely collocated book arrangement and household item sorting layouts Wide Multi Scene Use: The pvc clear storage bags set for study room bedroom office file storage and household item tidying scenarios