These Reverse Style Illumiglo Gauge Overlays are a great way to TRICK OUT your Bike's Instrument Cluster. The gauges light up with RED & BLUE lettering and text at night, and will show a Pure-White face during the day which is excellent for show purposes. All panels are made of a very High Quality flexible plastic material. The gauges are self-illuminating, and will cover up any stock lighting in order to illuminate properly. Best of all our gauges DO NOT REQUIRE NEEDLE REMOVAL. Thats right, we designed the gauges to slip over and under the needles requiring absolutely no needle removal what so ever. General installation instructions are included with every gauge set Installation: Installs are simple, as the average customer can do an installl within an hour, though we do reccomend professional installation of the product. Each gauge has 3M adhesive on the back to hold it to the surface of the OEM gauge. Each gauge is designed to slip over and under the gauge needle so that needle removal is NOT required. There is very minor wiring involved in the install process, that consists of a positive and a negative hookup. The Positive(RED WIRE) and Negative(BLACK WIRE) are reccomended to be hooked to the bike's headlight / parking lights power source. 1 Year Manufactures Warranty is included.