we’re going to review part number PK34212. This is the Pollak Heavy-Duty Toggle Switch. This is a custom-design, chrome-finish toggle switch. It is a single-pole, single-throw, on-off toggle switch. It is designed for high-current application, provides the longest possible service life, has an aluminum knurled face nut right here on top. On the bottom is a nickel-plated hex nut. It does use a rugged, glass-filled nylon slide.Note: Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.