Portable Child and Pet Safety Gate Guard: Our pet guardrail comes in two sizes 71*31in or 43*31in, suitable for most door and stair widths, and can be adjusted according to the actual situation. Made of Super Durable Material: Soft mesh material reduces the risk of accidental injuries while playing. This pet door is made from tough, partially transparent woven mesh that can easily withstand the abuse of small pets' paws. Suitable for various locations: Suitable for various locations in the home, including kitchen, bedroom, living room, stairs, doorways, etc. Height adjustable to accommodate different floor heights. Easy to Install: Our telescopic doors come with all necessary components and are easy to install in any location. Using the tools provided, you can quickly and easily install your new pet door in just minutes. Please note: Different panels will affect the stickiness of the hook, it is best to stick on a dry, clean and smooth panel.