Sized for large dog breeds, this 16-panel exercise pen uses 40 by 24 inch panels that assemble into a roomy enclosure with enough height to discourage climbing and jumping out. The structure resists deformation from active dogs, and rounded corners cut down on bumps and scrapes, while the L-shaped latch opens easily for you but stays closed against pets. Panels rearrange into different shapes to fit whatever space you're working with, whether that's a living room, bedroom, open yard, poolside area, or campsite. It also works for cats, rabbits, call ducks, and guinea pigs, so one pen can cover different pets in the household. The thickened connecting rods keep the setup stable through daily use, and the whole thing folds down for compact, portable storage, making it a practical option for RV trips and other outdoor outings. Finished in black, it weighs about 78.7 pounds fully assembled.