Perimeter Technologies Basic Ultra Comfort Contain System Size:No Wire allowing you to lock it

allowing you to lock it at night to keep your kitty safe inside

Crystal litter doesn't clog rake or clump to the bottom of the tray

It assembles in just minutes and includes two doors (emergency exits)

It includes an adjustable nylon collar

folding steel frame to set-up and fold down providing easy portability and effortless assembly

Perimeter Technologies Basic Ultra Comfort Contain System Size:No Wire allowing you to lock itThe pet fence difference you can feel for yourself! It's one thing to make a product that keeps your pet safely in the yard, it's another to thoughtfully design a fence with features that make it safer and more comfortable too. Perimeter's exclusive Comfort Contacts cushion your pet's neck with soft rubber, unlike the hard steel probes used in other pet fences. Veterinarians prefer the softness of the Comfort Contacts to help reduce the incidence of