Pet Door, Ownpets X-Large Pet Wall Doors with Plastic Flap Door, Easy to Install Sturdy & Durable Pet Screen Door, Fit Small, Large and Extra Large Dogs (WHITE)STURDY & DURABLE MATERIAL: Compared with other soft flap doors on the market, our pet screen door is made up of plastic flap door, which is no doubt much safer and more durable to keep it firm enough without getting loosened easily. In the meantime, it is durable in use and ensures a long service life. USER FRIENDLY DESIGN: The screws have been reinforced so that it can make the pet door more stable and also keep it from falling to the ground. The