Motor brush. Our VS-2 is steel enclosed with an internal botton spring. Base: flange 0.618" (15.7mm) long x 0.277" (9.5mm) wide. Housing height: overall 0.534" (13.5mm). Carbon element is extended out of top 3.2mm high x 6.2mm long x 2.2mm thick. Note: Manufacture logo is a diamond with GS in the center.