- BPA-free, Hygienic & 100% Food Safe, - All Containers Are Stackable - Cold Air Circulation System : When All Stacked Up In Many Tiers, Cold Air Can Still Circulate Smoothly Between The Containers - Crystal Clear Containers - Okay For Hot & Cold Foods ( -30°C To 100°C) - Microwave Okay For 2-3 Mins Of Warming Up Foods ( Must Remove Lids ) - Made In Korea
