Material: Beer container made of PP material is non-toxic, harmless, and environmentally friendly. Concave and flat design for stable storage, worry-free use. Hollow design helps prevent mold and moisture buildup. Multi-purpose storage: This storage rack saves space and helps organize groceries, drinks, and small items. Suitable for use in refrigerators, freezers, on tables, desks, and in cabinets for storing groceries or managing small tasks. Stackable design: Foldable and space-saving, allows vertical use of space. Multiple shelves can be stacked together to maximize storage efficiency. Wide range of uses: Ideal for storing canned drinks, frozen vegetables, and other food items in refrigerators, freezers, cabinets, and storage rooms. Easy to clean: Simply wash the shelf with a soap solution. The plastic bottle rack is not dishwasher safe to avoid scratching.