● This slide-in food feeder is easy to attach and detach, and easy to clean. ● The bowl has a mortar-shaped bottom, making it easy for pets to eat to the end. ● Includes a spacer, allowing you to set it at a height that's easy for your pet to eat in various cages. I stored this item after purchasing it without using it. Although it is unused, the packaging has some wrinkles. Thank you for looking.