Lucky Dog Pet Excersize Pen Includes: sturdy, wire fencing, unique 90-degree security latches, and modular design If you are looking for a safe and secure portable training fencing for your pet, then look no further! This pet area wireframe provides the perfect amount of space for your dog, cat or pet to roam free while still keeping them contained. The main features of the Lucky Dog Exercise Pen include: Sturdy, wire construction for safety and security Step-through door for easy access in and out of the pen Collapsible design for easy storage and transportation Let your pet exercise while still being protected and contained in a secure environment! About Lucky Dog: PERFECT FOR ANY PET – This pet exercise pen has a welded wire design and is built to keep your happy pet in a safe and secure area. Perfect for medium and small animals. INDOOR & OUTDOOR USE – Use this wire exercise pen in your house or out in the yard. Every unit comes with anchor pins and installation clips. EASY SET UP – There are no tools required to set up the Lucky Dog exercise cage and you can pop it up in minutes. STURDY WIRE CONSTRUCTION – Each fence is built with a sturdy wire construction with a rust-resistant E-coating for durability that folds for easy storage and mobility. Diameter. Small: 24 High x 6ft Diameter Medium: 36 High x 6ft Diameter Large: 48 High x 6ft Diameter Our motto is, Every home deserves a good dog and every dog deserves a good home. We keep that idea in mind with every Lucky Dog product we create. Our line of Lucky Dog Kennels and accessories is everything you need to keep your dog happy and safe while you are away. Your petfts safety is at the forefront of all product development and construction, and we are moving towards using more environmentally responsible processes in our production. We are proud to have served families and their pets with the Lucky Dog pet brand for over twenty years and look forward to many more years serving the needs of pets across the country.