Product FeaturesEach cage has a front door and a Roof Door, The both doors locked with 2 patent latches.These pet crate also have an ultra-durable, multi-layer finish that is much stronger than the "electro"or "powder"coats seen in inferior cages. This hammertone finished is rust, corrosion and fade resistant. Suitable for outdoor and indoor use.Every crate features 2 removable plastic pans. This design makes it easier to keep your pet clean and makes mess removal a breeze. The pans made from ABS for easy cleaning, it has an integrated lip around the perimeter to contain any mess. Both trays are held securely in place to prevent slipping but can be quickly removed for cleaning.These crates also feature 4 lockable caster wheels, all of which lockable to prevent accidental movement.The crate ship partially assembled, please follow the instructions strictly to assemble it, all tools needed are attached.Please do not make the screws tighten when you firstly connect the parts, after the construction correctly, then tighted all the screws.