It is thicker than harness tape (7-mils vs. 5-mils) and more opaque.  Rolls are 3/4" wide by 66 feet long on 1-1/2" diameter cores.  It is highly elastic and temperature rated to 221oF.  This tape is UL approved (except pink) and is RoHS compliant (contains no lead, mercury, hexavalent chromium, cadmium, or VOC solvents).  Applications include electrical wiring, color coding, and hoops.