Holley's analog-style standalone fuel level gauges give you a simple yet modern way to monitor your fuel level and are fully programmable for a variety of factory and aftermarket sending units. Their slim style mounting requires very little dash space depth for mounting. All of our gauges feature dimmable LED backlighting to ensure you can always see the gauge no matter the environment. Each gauge is tested to insure a top quality and accurate gauge. The Holley gauges are designed for a 2-1/16" opening and available with black face with white lettering or white face with black lettering.