This is why we have introduced the Zinger 4500. With this newest addition to our line of Zinger aluminum crates we have addressed the needs of those dog breeds that require a taller and longer dog crate. We have kept the width at a full 24" so you can still couple 2 side by side in a pickup truck or full sized suburban but we increased the height to 30" and the length to 38". This size has a ton of room on the inside of the crate which can accommodate many of the taller, lanky dog breeds that don’t fit well into the 4000 size.Aluminum Construction - ZINGER crates are constructed from lightweight aircraft grade aluminum which is known for its durability and strength. Aluminum crates are perfect for dogs who often destroy or break out of plastic and wire crates. While built to be strong and secure, Zinger crates are light enough to be handled by one person with little effort.Lockable Slam Latch - Each door comes with a flush mounted slam latch which is keyed for added security while you are away from the crate. Rest assured that someone cannot simply open the crate and walk away with your dog. Made from strong "stainless steel" for durability and to prevent corrosion.Ventilation - A Zinger crate is fully vented down each side and along the back wall to provide maximum comfort for your dog. Our open design allows air to pass freely thru the door aided by the triple rows of lower and upper vent holes which surround the crate. By its very nature aluminum quickly dissipates heat making it a great material to construct dog crates provided there are enough air holes. Lots of adequate venting ensures your dog will remain safe while in its crate.Airline Travel Approved - ZINGER crates exceed the strength and ventilation requirements by most airlines. By installing our optional "Airline Rails" the crate can be used to ship a dog by air. Strong aluminum crates will not bust or be broken by rough handling or shifting cargo loads thereby safe guarding your dog on route. When you ship your dog in a Zinger crate he is protected.Stainless Steel Hardware - Lock and mounting hardware are made from stainless steel to eliminate rusting and corrosion.Modular Design - All ZINGER crates can be coupled side by side or stacked atop one another to form multiple dog crate systems or kennel banks.Beautiful Finish - ZINGER crates are finished in a durable "Silver Hammertone" powder coat both inside and out. The secret to this tough finish is the high temperatures in which it is "baked on" so that it will not wear off. By powder coating the inside as well as the outside it protects your dogs coat from discoloration. Coat discoloration is common when a dog sits in an untreated aluminum crate. The bare aluminum oxidizes and the residue rubs off onto the dog resulting in a grey silvery color. This will not happen in a Zinger crate.Super Solid Doors - Reinforced with solid bars and welded for extra strength the door is built to hold your "Escape Artist". A full length piano hinge and striker plate is standard and the door can be easily reversed to allow for left and right hand opening.Backdoor Option - All models can be fitted with a second door for front and rear access to your dog. This option comes in handy if you transport your dog in a minivan or SUV.Dimensions: 24"W x 30"H x 38"L.Stainless Steel Hardware.Silver Hammertone Powder Coated Finish.Locking Slam Latch.Solid Barred Doors (Reversible).