10 brand new replacement wheel stud. These are knock in studs to replace broken or damaged ones, or to increase the length for new alloy wheels/spacers. Whether these studs are compatible for your vehicle depends on the spline thickness and the thread length. Spline Thickness - This is the part of the stud which grips into the hub. It is vital this is absolutely correct. These studs are 14.3mm spline which is suitable for: Toyota, Mazda, Hyundai, Mutsubishi. Thread Length - This is the length of the threaded section of the stud. It is important this length is correct so the wheel can be safely secured. The thread length of these studs are 50mm. If it's just a straight swap to replace the broken/rusty ones you have, the best thing to do it to remove one stud, measure with a ruler.