We have made 6 layers of packaging to protect the wheels from any rubbing: Plastic film is used as the basic protection to protect the wheel barrel from rubbing Sponge protective film protects the wheel's spokes from scratching The dust cover protects the wheel's spokes from dust The plastic bag is packaged as a whole to protect the entire wheel from any dust The overall packaging of bubble film protects the wheel from any bumps Final wheel carton packaging protect the wheels well to your hand