1. 100% Safe TransportationWe specially use quality pearl cotton card slot for lattice packaging, which is not loose. After repeated shaking tests, it is still intact. 2. Thick Glass JarGlass container made of durable foodgrade glass, these canning jars are sturdy enough for everyday home use, the wide mouth mason jars is easy to use and clean. 3. Considerate DesignsThese overnight oats containers come with groove designed lids, which allow you to stack them together for convenient storage and saving space; They come with a wide mouth for easy storing and taking out things, the transparent body also makes it visible to see inside content. 4. Leakproof and AirtightThese small glass containers with lids are made of glass, PP resin and silicone materials, which are leakproof and airtight, reusable and sturdy, can be applied for a long time; The screw lid fits the jar tightly, with thickened sealing ring, providing a nice sealing effect and won't leak even when turned upside down.