This listing is for two 2 Pelican Air Case replacement wheels. These are made by Pelican and will fit all the Air cases.  Comes exactly as pictured.  Wheel size - approx. - 2.25" diameter  x 1.25" width.  These are designed to fit Air cases only. These will not work for any of the classic Pelican cases, and will not fit a classic 1610 case either.