Silverstein ESTRO Alto M, Ligature, For alto saxophone mouthpieces made of plastic or rubber, Size: Medium, Synergetic resonance with the mouthpiece, Enhances the fundamental and overtones, Stronger projection, Fast and precise response, Colour: Champagne gold, Includes Omni capsule, interchangeable pads, user manual with warranty card, Handmade in the USA@+*Suitable for the following alto saxophone mouthpieces made of rubber or plastic:*@+@+, Beechler: Diamond Inlay, Jazz, Brilhart: Ebolin, Drake: Contemporary, Johnston-Selmer: New York Model 37, Jody Jazz: HR, JET 10, MacSax: D-Jazz, M.C, Gregory: Mickey Gilette, Meliphone Special: Steel Ebonite, Meyer: Vintage Hard Rubber, Otto Link: Reso Chamber, Primo: Alto 7, Selmer: Alto C*, Ted Klum: VeriTone Acoustimax, Also suitable for the following tenor saxophone mouthpieces: AW Reeds Rubber Tenor Advance, Morgan Rubber Tenor 6C