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 chew-proof, easy-to-clean galvanized steel wire mesh. Door is surrounded by protective vinyl guards, with spring-tension door latch. Sides are 2 inch by 1 inch mesh and bottom is 1 inch by 1/2 inch mesh. Hutch measures 24 inch long by 24 inch wide by 16 inch 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.