These are Ultra Lite series bass tuning pegs, offering both high precision and ultra-lightweight design. They are designed for 5-string basses with a 3:2 layout, but according to the importer's website, they can be reversed using a wrench, making them compatible with other bass layouts. Their light weight is effective in preventing neck dive. The mounting holes and screw hole positions are almost the same as GOTOH GB350 (I was able to replace them without any modifications). They have been used for several years, so there is some wear and tear, but there are no noticeable scratches or damage, and they are in good condition. Selling because I ordered the wrong size. ■ Bass Tuning Pegs ■ Ultralite ■ Y Key ■ Post Diameter: 3/8" ■ Chrome Mounting screws are not included. - Color: Silver - Type: 5-string bass tuning peg set - Included: Mounting screws (consider these as a bonus) Please consider that these are used items. Thank you for looking.