This is a Vintage 1960s Teisco Spectrum ET Guitar Tremolo Arm.From a Teisco Crown Logo guitar.Can be used on many vintage guitars Univox,Silvertone,Kay,Kent,Stradolin,Kawai,National, Aria,etc.There is some normal wear,scratches,oxidtion and a little light tarnishing.Approximately 7 inches long.Please look at all the pictures.This is Sold As Is.All Sales Final.No Returns.Buyer pays shipping,thanks