The Ruff Land Dog Kennel G2 is designed for durability and convenience when kenneling dogs at home or traveling to the field or vet. Made in the USA, the Ruff Land Dog Kennel G2 is made with quality and durability in mind for long-lasting use. Depending on the size of the kennel, the number of vent holes does vary, yet they are standard 1 3/8 in. diameter, and all kennels feature two finger holes in the back. The composite doors on this Ruff Land Dog Kennel G2 are designed with a tighter grid pattern to prevent any biting or chewing. No matter the size of your pup, you'll find a high-quality Ruff Land Dog Kennel G2 to keep them feeling safe and comfortable.