The Independent Replacement Kingpin Nuts (2) are self explanatory; but if you're unfamiliar, these are the nuts that screw onto your truck's kingpin. Since you need two trucks to skate, you get two replacement king pins. Skate Warehouse shows all colors and sizes we have in stock. In rare cases, (due to lighting, exposure or minor changes in updated product) the logo or color pictured may be slightly different than what is shipped. One size.