The OHMITE RKS500E is a high-quality wirewound rheostat with a resistance of 500 ohms and a tolerance of 10%. This 100W rheostat features a 1-turn electrical adjustment and a 1-turn mechanical adjustment, with a 6.35mm shaft for easy operation. The panel-mount design with solder lugs allows for secure and convenient installation. With dimensions of 66.68 x 79.38 x 88.2mm, this rheostat is a reliable choice for various electronic applications.