Ideal Pet Products Aluminum Sash Window Pet Door, Adjustable Width 23" to 28", Chubby Kat, 7.5" x 10.5" Flap Size, White

Window must be a minimum height of 15-1/8". Adjustable width from 23" to 28" | Locking rigid flap is made of unbreakable clear Lexan to allow pet to see through opening and is non-toxic for added safety | Flap Size: 7-1/2 x 10-1/2. Recommended for pets 2 to 25 Pounds | This Chubby Kat door includes a 4-way locking knob to keep your pet in or out. You can manually turn knob to desired position: in only, out only, free in/out and locked. | The patio panel frame is elegantly white with clear tempered safety glass, blending seamlessly with your home decor.