TWO ENDS ARE COVERED Two ends of the acrylic nail rack are covered by 2 detachable caps, which help keep bottles from falling out the sides of the nail polish rack. MULTI-PURPOSE ACRYLIC FLOATING SHELVES Nail polish rack can be used as kids' bookshelves, small toy shelves, picture racks, mini collectibles display shelves, and is a good place for organizing or displaying a series of small items. EASY TO INSTALL 6 individual nail shelves can be mounted separately. Easy to install in any configuration to suit your needs. All mounting hardware is included. When shopping, please pay attention to the size and dimensions of the product to ensure it meets your needs. Detailed product information, including features and specifications, is provided in the title and description. We want you to be completely satisfied with your purchase. If you have any questions or concerns, please . We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!