This product consists of four genuine Gibson potentiometer knobs specifically designed for electric guitars. These knobs are made by the reputable brand Gibson, known for their high-quality musical instruments. Perfect for replacing worn-out or damaged knobs on your electric guitar, these potentiometers will help you to adjust your guitar's settings with precision and ease. Upgrade your guitar with these reliable and durable knobs from a trusted brand in the music industry. Four genuine Gibson potentiometers for guitars. There are two 500k audio taper/long shaft pots and two 300k linear taper/long shaft pots. These were bought for a project that was never completed and are unopened. The packaging is slightly creased but remains unopened.