When selling an electric guitar on eBay, you can increase your potential bidders by enhancing the guitar's appearance, providing as much information as possible and featuring a well-lit photograph in your listing. You should also list the guitar using keywords so that it appears when users search for its brand.
The main description should have the guitar's manufacturer and model. You may also want to make use of the secondary information field to give some extra description to entice buyers, such as "unique color" or "vintage". In addition to the manufacturer's information, you should also describe the guitar's condition and any special features you think buyers would like to know.