I play drums, percussion, and occasionally acoustic guitar in a band. All the instruments I'm selling have been tested by me, and I can confidently recommend them. I also have other music-related items for sale. #mondo band related items These are brass bridge pins that sparkle on stage. The sound also became... I think it became more brilliant, lol. The size may not fit your guitar depending on the model. The diameter of the pin base is approximately 5.0mm. Please be aware that if the hole size is larger than this, it will be loose. I had no problems with my Morris, Ovation, and Aria guitars, but it was too loose for my Taylor. I use vinyl tape wrapped around the pin to adjust the fit.