Support for rubber valve stems. Applys to the wheel with adhesive and holds & protects the valve stem.
For Porsche 911 models 1974-1989, Porsche 911 Turbo models 1975-1977, Porsche 924 models 1980-1985, and Porsche 944 models 1982-1988, and Porsche 964 models 1989-1994.
