The SMONTER Heavy Duty Strong Metal I Shape Dog Crate is a durable kennel constructed with a reinforced steel frame that’s treated with a non-toxic， multi-layer hammer-tone coating. This coating allows it to stand up to rust， corrosion， scuffs and scratches. Paw-fect for indoor and outdoor use， this crate is welded and features a double lock with safety latches to ensure even some of the most rambunctious canines stay contained. Plus， your pup will get plenty of ventilation and visibility while inside， providing him with a comfortable environment. The removable plastic tray slides out， so you can easily wipe it down for hassle-free cleaning and the 360-degree rotating wheels and locking casters allow for easy portability or stability when needed. This crate is shipped partially assembled—all you have to do is screw the parts together!