This is an unused ebony oversized peg.  It is high quality.  This is used whe the hole in the peg head has gotten to be too big and a normal size peg doesn't work so well.  It is made "further out" on the cone shape so to speak.  It has the same taper, but is larger so it will fit the oversized hole.  This is to solve a problem.  It will arrive  brand new and ready to use.  I have one of these on my favorite violin and it works perfectly!  Thanks for looking at my listings.