Pull-out Refrigerator Storage Box Food Organizer Drawer Shelf Proper Features: Material: PP. FOR 0.5'' Under Fridge Shelf:Before buying, please carefully understand whether the size of your refrigerator partition is less than 0.5 inches/1.4 cm in width to ensure that our products are onto your fridge shelves. Thank you! Keeping things fresh:The ventilation holes at the bottom of the refrigerator drawer organizer facilitate drainage and ventilation, The ventilation holes that help in keeping things fresh. If I need to close the holes for some I just use a paper towel beneath. Unique Design: The hanging refrigerator rack effectively utilizes the upper of the refrigerator, increasing storage space to accommodate more food. Please note! Note: If you use the extension of the refrigerator shelf, you better put light items in it to avoid damage. Customer Service: The customer's buying experience is our top priority. According to the voice of the customer, the product may be damaged during transportation. Or did not on refrigerator shelves.If you encounter these situations, please kindly apply.We will with all your problem wtihin 48h!