These Blox Street Series Flat Black Lugnuts are perfect for both performance - driven car owners and those who love to show off their rides. Use them when you're looking to upgrade your vehicle's wheels for a smoother driving experience or to enhance its appearance at car shows. The lug nuts are 19mm hex with a length of 50.2mm, a 18.0mm knurled end, and a 25.3mm seat. They're made from forged AL7075 magnesium alloy, ensuring they're strong and reliable.