If you own a set of the KICS R40 Iconix Open-Ended Lug Nuts, then protect your investment with the KICS R40 Iconix White Plastic Caps. These plastic caps have been designed to keep moisture and debris from entering inside your open-ended lug nuts to provide extra protection to both your lug nuts and the wheel stud. These install by simply screwing into the R40 Iconix lug nuts with the provided special socket designed for these caps.