This hutch is strong, durable and rust-resistant for indoor or outdoor use. Excellent for rabbits, hamsters, guinea pigs, chinchillas, ferrets, gerbils and other small animals. Made of chewproof, easy-to-clean galvanized steel wire mesh. Door is surrounded by protective vinyl guards, with spring-tension door latch. Sides are 2 in by 1 in mesh and bottom is 1 in by 1/2 in mesh. Hutch measures 24 in long by 24 in wide by 16 in high. Easy assembly required; wire clips are included. Use Pet Lodge Wire Clip Pliers. Hutch is stackable up to four high when used with the Pet Lodge rabbit hutch frame kit.