Crash-tested confidence: Thule Allax dog crate is crash tested from the front and the rear and passes simulated roll-over scenarios - Innovative crumple zone absorbs 10-13cm of impact and protects your dog Available in five sizes each with adjustable depth to provide a perfect fit for your car and your dog Premium quality materials and design - Gas dampening door mechanism keeps the door open and prevents it from slamming shut - Precision design prevents rattling and other noise Safe and secure - Built-in lock on the front door keeps your pet safe and secure - Escape hatch lets you open the crate from the backseat in case of an emergency Great visibility - A window and openings make it easy to check on your dog at any time Thule Allax is compatible with a range of accessories including leash hooks, storage bag and bumper protection mat For trunk use only - Not design for truck beds or back seat applications