... , blue, gray,yellowTemperature-60°C~260°C ,up to 300C for short periods Hardness40-90 shore A, tolerance ... Grommets are black in color. Please select grommet according to cable size (inside hole). Panel hole size is the ... size of hole that must be drilled in the panel to accept the grommet. PerformanceConductive,Ozone, High/ Low temperature, ... any demand pls kindly let me know. Rubber wire grommets