Switch-n-Click convertible platform (PL217) with articulating arm (AA360). The ESI Ergo SOLUTION ULTRA Combo includes a keyboard platform (PL217), articulating arm (AA360), leatherette covered gel palm rest, nonslip pad, mouse pad, mouse guard, and cord management clips at no extra charge. The keyboard platform (PL217) is recommended for straight-edge work surfaces. It is perfect for left or right handed users. The articulating arm (AA360) provides 7-inch height adjustment (2.5 above to 4.5 below track) and comes equipped with 21 glide track and lift & lock. The SOLUTION ULTRA combo solution is backed by a lifetime warranty.