A4C offers the refurbished ZAGGkeys Folio Keyboard Case for iPad Air in Black, model no. ZKFHFBKLIT105, for $19.95 with free shipping. That's $20 under last week's mention of a new one and the lowest total price we could find for a refurbished one now by $20. It features a Bluetooth keyboard that purportedly has 30% more typing space than similar cases, backlit keys, and three months of use on one charge. A 90-day A4C warranty applies.