Please kindly noted that this item is sold by Mortess from Joybuy marketplace.Description Are you looking for professional, but affordable guitar control knobs? Are you looking for a robust and reliable tool that can do multiple jobs at the same time? If so, please don't watch it again! Our professional guitar control knobs must meet your needs. This is one of your best choices. Features -Color: Black -Material: acrylic -Size: 2.20X2.20X1.20cm/0.86X0.86X0.47in - If your knobs are dirty, old, or just want to dress up your guitar. These will be great replacement. - The simple design will make your guitar more special and cool. - Made of high-quality acrylic, practical and durable. - These knobs are sturdy and durable, and have an service life. - Suitable for guitar effects, guitar amplifiers, speakers, etc.