High Quality Materials: Made of high quality plastic, which effectively protects wheel bolts, provides permanent UV protection, and protects wheel nuts from salt and corrosion / rust. Easy to Install: Just press down on your screws for a tight fit, won’t fall out easily, small tool to do the easy job of removing wheel bolt nut covers. Application: These universal caps fit 19mm hex wheel bolts or nuts on most cars. Excellent for using: Cover your car’s screw and nut heads, protect them from corrosion, make old screws look like new; Makes your car tire look better on the outside. Package Contents: This set contains 20 wheel nut caps and 1 nut cover removal tool, usually just the right number of tire nuts on a car. Features: Both made of reliable, durable plastic; Universal nut cover, suitable for all 19mm screws or nuts of the car wheel; Black color, goes well with the colors of the wheels. Function: These caps can protect your screw heads from corrosion, old screws or nuts look new;