These are custom built BOZE Forged "Friction" 2 piece, 6061 T-6 billet aluminum wheels. They are 20x10 and 20x8.5, 5x114.3 bolt pattern. Rear offset is 40, front is 28, as you can see in the pics they are set up nicely for the 2005-2012 Mustangs. They have a Gun Metal finish with a polished lip. There is about 4000 miles on them, and they are in excellent condition (no scrapes or curb rash). Aucition is for wheels only, no tires or tpms sensors. The retail on this set is over $3700. Click on pics to see bigger. $1700 OBO.