Increases capacity for multiple purposes The stackable design enables versatile packaging for rolls, dumplings, noodles and breads, maximizing storage space efficiently. Non-stick wave-structure base with refrigerant The non-stick wave-base with refrigerant prevents food from sticking and helps retain freshness; sturdy stacking resists tipping and makes storage convenient. Tight and seamless buckle connection Secure, odorless attachment keeps stacked boxes in place and prevents them from coming loose, making daily storage more convenient. Multi-layered free stacking Stable, multi-layer stacking creates more freezer space, keeping dumplings, rolls and other foods organized and easily accessible. Use scenarios - Freezer storage: store dumplings, buns and noodles in stacked boxes to maximize freezer space while maintaining freshness. - Fridge or pantry organization: keep breads, rolls and noodles neatly organized for easy access. - Meal prep and batch cooking: pre-portion items in advance with secure stacks for quick, convenient retrieval.