Thank you for viewing. [Limited to those who give an early evaluation] You can easily install a cat door by simply fitting it into the sash. Insert the upper panel into the main panel. * Please be careful when inserting the panels and attaching them to the sash. Suitable for sash heights from 150cm to 230cm. Made of steel, panel color: white Cat door: 14cm x 16cm H, made of plastic Cat entrance frame color: gray Panel width: 19cm, depth: 2.5cm Regular price: 23,100 yen Brand new, unused, and unopened. Returns are not accepted. Thank you.