4 switch modes can control in and out of fashion by setting the button, thus you dont need to worry about the safety of pet.It is very easy to install that you just need to tighten the screws and ensure its stability.Made of ABS, It is very durable and solid to use.There are three sizes for choice.It is very suitable for pet, including dog, cats, rabbits, etc.Size Details:S (Exterior Size) : 20cm x 19.2cm x 1.5cm/7.87in x 7.56in x 0.59in (Approx.)S (Inner Size): 16cm x 15.7cm/6.30in x 6.18in (Approx.)M (Exterior Size) : 20cm x 19.2cm x 5.5cm/7.87in x 7.56in x 2.17in (Approx.)M (Inner Size): 16cm x 15.7cm/6.30in x 6.18in (Approx.)L (Exterior Size) : 25cm x 23.5cm x 5.5cm/9.84in x 9.25in x 2.17in (Approx.)L (Inner Size): 19cm x 18cm/7.48in x 7.09in (Approx.)XL (Exterior Size) : 22cm x 25cm x 5.5cm (Approx.)XL (Inner Size): 22cm x 20cm (Approx.)Size:S, M, L, XL(optional)Color:Black, White(optional)Package List:1 x Cat Door1 x A set of mounting screwOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it