Namsan Doggie Door Cat Door 4-Way with Telescopic Frame --White 7.5" X 7.1" Opening Size Doggie Door or Cat Door, Size: 7.5 X 7.1 (inches) Opening, Metarial: ABS Silent, does not produce any noise when the pet access 4 Multi function settings: fully closed / fully open / only in / only out suitable for the doors can up to 2-inch thick Namsan's Delivery: FBA(Fulfill by Amazon) can one day delivered, FBM(Fulfill by Merchant) will need 6--14 days, Not as Amazon system shows:14--28 working days