Easy access door offers one hand operation and dual lock for safety * Comes with six removable and adjustable panels; encloses up to 18.5 square feet and is 26" high * Optional two panel extension available and will increase the size from 18.5 square feet to 34 square feet; maximum of 8 total panels can be used * Works on any surface both indoors and outside; will not scratch * No assembly just click panels into place