Description:This Violin Cello Wolf Tone for Eliminator effectively tames wolf notes. It fits on the string below the bridge.It is a golden-plated brass with rubber sleeve wolf tone for eliminator that fits for Violin/Cello.This is a metal tube and mounting screw with an interior rubber sleeve that fits around the offending string below the bridge.Different placements of this tube along the string influences or eliminates the frequency for at which the wolf occurs.It is essentially an attenuator that cuts down on the odd reverberation.Specification:Material: BrassSize: approx.Violin wolf tone: 7x11mm/ 0.28x0.43 inchCello wolf tone: 11x12mm/ 0.43x0.47 inchColor: GoldShape: CylindricalPackage Includes:1 Piece Violin/ Cello Wolf Tone for EliminatorNote:Colors might be different due to different display.Please allow slightly difference in size due to manual measurement.