Rubber coating on the wire harness bundle wraps that are predominately found in the engine bay and interior.
In the engine bay there is a total of 20 + or - regular size and 2 of the wider type in the transmission area.
Installation requires that you remove/cut  your existing rubber from the tab, then slide new rubber onto tab.
You will need to count the total number of tabs you need. 
sold each one(1)