For those curious dogs who want to see what is on the other side of the fence, the MiMu Pet Porthole Bubble Windows Fence Dome Dog Window is the way to go! Dog fence hole plastic half globe lets your pet watch squirrels, cars, and people. Pet bubble window is great for letting your dogs feel like astronauts exploring the world! Dog port hole crafted from durable, clear acrylic. Simply use a hose or a wet cloth to easily clean nose prints and dog saliva from the dog viewing bubble. Each dog fence dome has a 9.25-inch (23.5 cm) inner diameter. Dog portal extends approximately 4.5 inches (11.43cm). Whether your fence is wood or vinyl, this dog bubble window is a perfect fit. No need to worry about excited doggies chewing holes through your fence anymore to look outside. Choose a 1pk or 2pk. [Dog Window for Fence]: For those curious dogs who want to see what is on the other side of the fence, the MiMu 12.4-Inch Dog Peeking Fence is the way to go; Pet peek window can be used as a playground bubble window [Curiosity Abound]: Allow this doggy fence window to let your pet watch squirrels, cars, and people; Pet dome window is perfect for letting your dogs feel like astronauts exploring the world [Choose Your Acrylic Dome]: Dog port hole crafted from durable, clear acrylic; Use a hose or a wet cloth to easily clean nose prints and dog saliva from the dog dome window; Available in 1pk or 2pk, each 12.4-inch (31.5 cm) outer diameter [Any Fence Fits]: Whether your fence is made of wood or vinyl, this fence bubble doggie window is a perfect fit; No need to worry about excited doggies chewing holes through your fence anymore to look outside [Easy to Install]: Simply line up included trim ring to a fence post at appropriate height on your fence and outline inner ring; Use an electric jig saw or hand scroll saw (not included) to cut hole; Drill holes for provided 3/16-inch (5mm) screws; Attach dog house window with screws, washers, and nuts provided California Residents Prop 65 warning:Products may contain a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. This product has a manufacturer warranty against defects in materials and workmanship for a period of ONE (1) YEAR from the date of original retail purchase. See our Seller Return Policy for more details.