The Pawhut 28" heavy duty pet playpen is specifically designed forultimate versatility; great for indoor / outdoor use, use the 4included panels or combine 2 or more sets together. Features strongmetal construction and can be set up easily and taken down qucikly fortransport and storage. Features: - Use as few or as many panels together as you want - Easy to setup and no tools required - Material: Powder Coat Low Carbon Steel - (2) panels are 27.6" tall by 49.2" wide, (2) panels are 27.6" tall by31.5" wide - A great quality and affordable model!