HUTT Click-n-Keep 32 Piece Nano Air/Water Tight Food Storage Container Set w/ Four sided Locking System, BPA Free *32-piece food storage container set | *100% airtight and watertight | *Airtight and watertight seal for no-mess storage *Hinged side flaps with easy grip ends | *Silicone ring for superior seal | *Stackable for easy, space-saving storage *BPA free high-quality plastic material | *4-sided locking system provides equal pressure on all sides, keeping food fresh longer | *Withstands extreme temperatures  Suitable for microwave ovens and freezers *Extremely durable withstands repeated bending | *Microwave safe containers and lids (for reheating only) | *Dishwasher safe (top rack only) *Semitransparent lids & containers | *16 storage containers with lids | *Storage capacity of containers range from 8.1 cups to 0.4 cups