The caps are self leveling and come in two sizes. Make sure to pick the right one for your wheel styling. To install the fixed hub caps during a wheel change, slowly push the current caps out of the rim from the backside.
Now press the BMW fixed hub caps until they snap in place. You can install the caps while the rims are mounted to the car.
Link to How-To Video: How to Install BMW Fixed Hub Caps | BMW USA
Hub caps can be purchased at ShopBMWUSA.com.
