• SAVE SPACE:Each container is fully collapsible to 1/3 of the original size while not in use,and all can stack on top of one another,save much space.Perfect for RV,travel camping and work;
  • PECULIAR VALVE DESIGN:Opening the valve can exhaust hot gas and water vapor.Vacuum seal lunch box containers keeps foods secure and fresh. It is also suit for liquid without leakage;
  • MULTI-FUNCTIONAL USES:Perfect for storing snack,leftovers and any pieces.Great solution for people who want a lightweight, sealed container to carry out.microwave,freezer and dishwasher safe;
  • MATERIAL SAFETY:100% food grade silicone(baby safe),non-toxic,tasteless,no odor,soft, BPA free, easy to clean;
  • MULTIPLE COLORS & SIZES:including 4 food containers,a red container (350ml),a yellow container (540ml),a green container (800ml),a blue container (1200ml).