Suitable for most sliding door openings, the Large Mesh Patio Pet Door is extendable from 1.57m up to 2.14m. The flap opening measures 280mm wide x 410mm tall making this insertable pet door ideal for Collies, Setters, Labradors, Boxers, Pointers, Bulldogs, German Shepherds and other large breeds. No tools required for install, this pet door is perfect for renting with pets or for homeowners that don't want to make a permanent change to their home, just install and remove the pet door as needed. Durable powder-coated aluminium construction with sturdy fibreglass mesh panels keeps insects out while still allowing fresh air in. The flap measures approx. 35mm high from the ground, to increase the height for taller pets use a Mesh Patio Pet Door Extension (sold separately) IN: 0331699. Add Weather Panels to seal off Mesh Panels (sold separately) IN: 0293783.