Black Delrin, hand machined antenna delete plug. Fill in that open hole in your cars sheet metal after shaving valuable weight following an antenna removal. Will fit all 79-75FB & 86-91 FC RX7s, coupe and convertible. Will plug hole in stock GTU Style spoiler found on a number of RX7s. However, may not be compatible with other wings.

Plug DOES REQUIRE the use of RTV Silicone to adhere to body & seal inside of car from the elements.
For any further questions please write in, thanks!