Six interlocking panels create a portable play area that can be arranged to fit in multiple configurations. Encloses up to 18.5 Square feet, and stands 26" high. (Oversize Charge Applies) NS-8666$74.00 Superyard XT ExtensionTwo panel kit increases space to 34.4 square feet. Each panel is 30" wide. (Oversize Charge Applies) NS-8666X$31.00