Namsan Pet Passage Screen Door For Screen And Window Large Color: Black,Size: 12"H x 16"W opening Two ways of solving the problem of falling apart:1.more studs have been added for the screen;2.four cable ties that can be repeatedly used have been provided for every package. (April, 2016) Fits all door and window screens, Suitable for all pets up to medium/large size dogs Durable, self-closing pet screen door,Not included the Screen Namsan's order just need usually 6--14 days arrived your home(Not as Amazon system shows:14--28 working days),FBA items can arrived within 1--5 days Available in S,L Durable self-closing pet screen door For cats, small dogs, medium sized dogs and medium/large dogs. Install easily