Impact Case Dog Crates are 20 percent lighter than comparable crates and feature 3/8 inch round bars welded with a cross bar for stability. Made from American-made high quality .063 aluminum with a powder coated finish, this heavy duty crate will help reflect heat away from your K9. The marine grade slam latch and hardware features a no hassle close, providing optimal security for your pet. The larger, rounded square vent holes and door openings allow increased airflow. The welded, rivet construction has composite corners for impact-protection and the ability to stack multiple crates. This IATA compliant crate features larger airline rails and easy carry handles. You can purchase them in collapsible, stationary and high anxiety styles at www.rayallen.com.