If correct price isn't showing, Select New & Used or Other Sellers on Amazon. Pick new Amazon for $13. Amazon offers the Kensington KeyCover Hard Case Keyboard for iPad Air, model no. …
Amazon are selling these iPad Air Kensington keyboard cases for $15.43 + shipping, which for me was $8.58 to Sydney metro or US$24.01 all up delivered. Cheapest ever according to camelx3.
