Available models in the drop down;
Apple iPad Air 1st Generation : A1474 / A1475 / A1476
Apple iPad Air 2 (2014): A1566 / A1567
Apple iPad Air 10.5" (2019): A2153 / A2123 / A2152
Apple iPad 6th Generation 9.7 (2018): A1893 / A1954
Apple iPad 5th Generation 9.7 (2017): A1822 / A1823
Apple iPad 4 9.7: A1548 / A1549 / A1460
Apple iPad 3 9.7: A1416 / A1430 / A1403
Apple iPad 2 9.7: A1395 / A1396 / A1397
Apple iPad Mini 1/2/3: A1432 / A1454 / A1455 / A1489 / A1490 / A1491 / A1599 / A1550
Apple iPad Mini 4 (2015): A1538 / A1550
Apple iPad Mini 5 (2019): A2124 / A2126 / A2133