【Safe & Sturdy Upgraded Design】: Our dog playpen indoor features an upgraded automatic door lock, easy to lock and unlock, prevents pets from escaping at the same time. The supporting rods are designed with round ball tops for protecting you and pet claws. The improved stakes are robust and simple to insert into the ground for increased sturdy and stability 【Rust-proof & Heavy Duty Metal】: Made of heavy duty metal with thickened steel wire panels and a double-layer coating process, our pet playpen is rust-proof and waterproof, the sturdy construction prevents the dog fence being push over by dogs. The outdoor dog fence can be used outside without worry. The dog pen indoor designed with anti-slip foot pads and flat bottom stakes prevent floor damage when used indoors 【Upgraded Size & Large Space】: Our dog play pen indoor measures 27"W x 40" H, offering a larger comfortable space for your furry friends. With 8-40 panels of different sets, the pet puppy playpen provides a maximum space of 669 square feet. Suitable for large/medium/small animals, like Labrador dogs, golden dogs, cats, rabbits, ducks, chickens, and more 【Easy Assemble & Free Shapes】: The rod-connected design made the puppy pen much easier to setup. Just need to combine two fence panels and insert the metal iron rod through the hole, you will finish a indoor/outdoor dog pen for daily use. The rv fence for dogs is removable and flexible, can be DIY to any shape you need like square, rectangle, round, etc. You can also add more panels to expand the the portable dog fence 【Portable & Foldable】: Our dog fences indoor can be disassembled into a flat and compact size for space-saving storage and easy carrying. That means you can take the camping dog fence to provide a safe space for your pets to any where at any time. Great outdoor dog pen for travel, RV camping, or play in the yard. Enjoy more fun time with your pet dog playpen dog play pen indoors