This mouthpiece cap can be used regardless of the manufacturer/shape of the rigature. Securely guards the tip of the lead and mouthpiece It is also made of silicone so it wont sound when dropped at concert venues or stage. It is more compact than traditional mouthpiece caps, making it an excellent item that can be easily stored in your pocket. S Size: Soprano Sax, E♭, Clarinet, M Size: B♭, Clarinet, Alto Sax, Tenor Sax, L Size: Bass Clarinet, Bariton Sax, Black (Black), White (White) / Clear