Dog Crate/Pet cages 77561887Features: Tubes and frame made of high quality steel for long lasting use Each bar is securely welded to the frame for stability and security The gap between the bottom slats are 0. 6" to better care of the dog's paws to prevent pinching Front door with 2 slide bolt latches for easy entry and exit 4 caster wheels for easy movement, with a lock to prevent unintended movement Specification: Color: Black Material: Steel Overall Dimension: 43. 75" L x 29.