This chrome-plated steel product is an OE-style spool that fits various Peterbilt models. It comes in two lengths, 52 inches and 55 inches, with an 8-inch diameter. Sold individually, the 52-inch spool fits most 1994 to 2002 Peterbilt 379 models, while the 55-inch spool fits most 2003 to 2007 Peterbilt 379 models. This product is practical and durable, making it an excellent choice for those in need of a replacement spool for their Peterbilt truck.