Add width to your Stairway Special Safety Gate (model SS-30) with this easy-to-use Cardinal Aluminum Extension for Stairway Special Indoor Safety Pet Gates. Since this pet gate works exclusively with the Stairway Special Safety Gate (model SS-30), it is designed for indoor use only. The aluminum construction and powder-coated finish of this heavy-duty pet gate provides durability. For assurance, a limited 1-year warranty is included on this pet gate for stairs. Make sure your furry friend stays safely contained right where you want them with this pet gate extension.Note: This product may require up to 2 additional days for order processing prior to shipping