Apontus Dog / Cat Exercise Softcrate Playpen, 45" (Misc) Free Carry Case and Fold Flat To Save Space | 4 metal hooks to hold the play pen onto ground if needed Eight Panels | Side pocket to storage the hooks and water bottle. | Lightweight, portable and fully assembled Zip in mesh cover | 2 Zippered Doors Each panel is 18 " wide and 24" high 45" Diameter after it set up - 4 Ft Diameter