Perfect for housebreaking; the Petmate® Vari Kennel® is ideal for training and traveling. Features include tough durable construction with an easy-open squeeze latch door; 360-degree air flow ventilation; an interior moat to keep pets dry; and tamper-proof holes which enable zip ties to be attached to the door adding an additional layer of protection when traveling.Petmate Vari Kennels in sizes 19"; 24" and 28" feature a multi-purpose handle designed for both carrying and securing in a vehicle. Our larger sizes - 32"; 36"; and 40" - feature tie-down strap holes to secure the kennel in a vehicle.Petmate Vari Kennels are easy-to-assemble with no tools required. Includes spiral wing nuts and bolts. For airline travel; the use of wing nuts and bolts is required. Meets most air travel requirements; but please contact your specific airline before traveling for verification of their specific requirements. Made in the USA.INTERIOR DIMENSIONS:19" Interior Dims: 16.2" L x 12" W x 9" H24" Interior Dims: 21.5" L x 15" W x 13.5" H28" Interior Dims: 24.25" L x 18.25" W x 19.5" H32" Interior Dims: 29.5" L x 19.75" W x 23.5" H36" Interior Dims: 32.5" L x 22.25" W x 26" H40" Interior Dims: 36.25" L x 24.75" W x 28.8" HPRODUCT NOTE REGARDING SHIPMENT OF THIS ITEM: Due to the size of the 36" & 40" Vari Kennels; they must ship via a LTL/Freight Carrier. An oversized item shipping surcharge will be applied at checkout. This size kennel is eligible for ground shipping only. Please note that your kennel will arrive in 10-14 business days.For assembly instructions; visit petmate.com/kennel-instructions