This is included in applicable Core Shifter kits - do NOT BUY unless you want an extra / replacement.

Oval boot support grommet:

Replaces Hurst #1140015 as found in service pkg # 1140016. This grommet is part of Hurst shifter kits for the following applications:

It is also used by the following Core Shifters kits:

If you have another custom application, feel free, but understand that the boot opening needs to be fairly large to use this (you may have to cut your boot to enlarge it)

Retained with either elastic (in the boot), a 6" cable tie, or a -118 o-ring (not included)