40 Inch 16 Pnaels Rollick Dog Playpen, is suitable for medium and large dogs to have a comfortable and safe area indoors and outdoors.Sturdy and Safe: Our patented dog playpen stakes provide stability and support when firmly planted in the ground. Keeps the fence from being blown over by the wind/pushed over by the dog.Easy & Secure Lock: With the automatic gravity-actioned design, the locking mechanism will ensure you can open and close the door smoothly and reduce the chance of dogs unlocking by themselves.Reliable Playpen Material: Crafted from durable metal with a thickness of 0.6'', our FXW playpen is engineered to provide long-lasting reliability, ensuring its endurance over the years and steadfastness once it is set up.Flexible Modular: The playpen allows you to easily add, remove, and reshape the playpen according to your individual requirements.