This is a set of replacement hardware for front or rear Kartboy end links. You get four bolts, four matching mechanical lock nuts, and eight washers.
Each kit contains enough hardware for two end links.
Available for most any car equipped with Kartboy sway bar end links. Note that the hardware comes in two sizes. The majority of Kartboy links use 10mm hardware, but 2015+ WRX/STI uses 12mm hardware on the front end links. Measure the hole/bolt size of your end links if you are not sure.