The Nomster wheels , released in Season 6#Rocket Pass, are a collectible item used to customize a player's vehicle. They provide no advantages while equipped and are purely cosmetic.
The regular version of the wheels can be obtained from 6. Since they are from the Rocket Pass, they cannot be traded. Only the Painted variants from tier 70 and Upwards can be traded between players.
The Nomster wheels are classified as Limited rarity.