Three of the six flight wheels that will travel to Mars can be seen attached to NASA's Perseverance rover (which is inverted on a handling fixture) on March 30, 2020 at the Kennedy Space Center in Florida. The protective antistatic foil covering the wheels will be removed before launch; the launch window opens July 17, 2020. https://photojournal.jpl.nasa.gov/catalog/PIA23821
Album Mars_2020_Perseverance