This is a stainless steel slide bar for guitar. I purchased it on Amazon and opened it, but I haven't had a chance to use it, so I'm putting it up for sale. Quantity: 1 Shape: Length 28mm x Inner Diameter 22mm x Thickness 1.5mm *Actual length is 28mm. Condition: Unused. Will be shipped on or after January 4th. Thank you for looking.