Dress White 2" Trim Gauge (Mercury / Mariner / Mercruiser / Volvo DP / Yamaha '01 and newer) Perimeter-lighted White dial with bold Black graphics, White aluminum bezel, contoured Black pointer and flat glass lens.2"- Hole Size: 2.0625" (53mm)For Engine Types: (Mercury / Mariner / Mercruiser / Volvo DP / Yamaha '01 and newer); Specifications: Anti-scratch glass lens; 12 VDC negative ground; Can be adapted for 24 VDC systems; Factory P/N GP9712*Sold as an Individual*Gauge Cover not IncludedThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. - cis2:mm5mnJlm -Specifications: Gauge Type: Trim Guage; Series: Dress White; Voltage - Input Range (Volts): 12/24 V; Gauge Size: 2"; Box Set: No; Box Dimensions: 4"H x 4"W x 5"L WT: 0.3 lbs; UPC: 759266131224; Quick Guide (pdf)