ATLAS(TM) Hydraulic Gauge Kit for 4" & 8" ATLAS(TM) Jack Plates - Stainless Steel BezelDigital LED Position Gauge for Atlas(TM) Hydraulic Jack Plates.Features: All Digital Readout Black Face and Stainless Steel FaceGauges Available Outer Bezel available in Stainless Steel or Black Polymer Each Number Indicates 1/4" Rise Numbered from 0 to 20 All AtlasTM Jacks are Pre-drilled to Fit See pictures to the right to view both styles WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.