Thank you for looking. This is a SUZUKI VIOLIN contrabass machine head (tuning peg, string winder, peg) with gold plating. The posts for winding the strings are also made of metal. It features engraved decoration, making it a higher grade than the standard model. There is some rust on the posts. Please check the images. The pitch between the posts is approximately 88mm on the treble string side and approximately 91mm on the bass string side. Please check your contrabass or upright bass before purchasing. Only the machine heads shown in the images are included in this listing. If you are sensitive or have little transaction history, please be sure to check your profile before purchasing.