Features:-IMBOXX inner flap designed for dog screen door which size is X and XL.-You can update your door flap without changing the frame when your dog or cat damaged and teared it.-To replace the door flap on screen dog door any time you just flex it a bit and it pops right into the frame easy to install.-Bought replacement door flap rather than purchasing a complete dog door to save money-If you are looking for screen pet door Namsan pet screen door would be the great one Namsan door flap also is ideal backup for the screen door. Origin:CN(Origin) Dog Door Item Type:Doors & Gates Applicable Dog Breed:Large Dog Model Number:LS-CWM Material:Plastic Type:Pet Doors Commercial Buyer:E-commerce Stores, Gifts Stores Occasion:Camping, Travel Holiday:Valentine's Day, Halloween Season:All-Season Room Space:Indoor and Outdoor Room Space Selection:Support Occasion Selection:Support Holiday Selection:Support Application:Dogs, Cats Model Number:201703Dogdoor-L Color:Black Material:ABS Size:Small, Large Usage:Pet door for screen door Used:Interior dog and cat walk door Appearance Patent:ZL201630657506.X