Pet Pen Cover SizeTop cover accessory for dog pen cover, suitable for pet pen with 4 panels, each panel is about 35 to 36 inches wide. Please confirm that the fence size is suitable for our pet fence sets before purchasing. (Note: Pens are not included!!!) Night Reflective Strip DesignThis puppy fence cover has a unique night reflective strip design, the pen cover can reflect light at night and in dark places. You can clearly know where your pet enclosure cover is and won't bump into it, and you can find its location more accurately. High visibility to protect your furry friend at night. DURABLE AND EASY TO ASSEMBLEThe black pet pen holder is made of durable polyester, providing reliable strength and long-lasting performance. The mesh fabric design lets in fresh air, blocks direct UV rays and creates partial shade from the sun. It has 3 Velcro straps on each side so you can easily attach it to your playpen, and it's easy to remove for easy portability. Prevent Your Pet from EscapeWhen you don't have time to spend time supervising your pet, the mesh dog fence cover provides a suitable and safe enclosed area to prevent your pet from walking around and not finding it. The pen cover is made of 12 It consists of a Velcro, and the loop strap is fixed with the pet pen, making it strong enough that you don't have to worry about your pet breaking free.