Material - The alto saxophone mouthpiece cushion is made of good quality rubber, which will not harm to your health; Its a good accessory of saxophone and clarinet. Adhesive - This soft rubber pad with adhesive, which allows the teeth firmly fixed to the mouthpiece without slipping, no residue/ adhesive will be left on the instrument while peeling off. Better Performance - The sax mouthpiece cushion correctly seals the top of the mouthpiece for excellent air tightness. It allows you to focus on your play and show your performance skill better. Soft Rubber Cushions - They are soft rubber cushions with strong adhesive that keep teeth firmly on the mouthpiece without slipping. Non residue adhesive that is sticky and do not peel off during the use. Wide Use - The alto mouthpiece pad can protect the saxophone flute head and protect the teeth of the players, which is a great accessory for alto/ tenor saxophones beginners and suitable for the alto saxophone. Features: This mouthpiece pad is suitable for alto tenor rubber saxophone clarinet. Protects your mouthpiece and teeth by reducing vibration when playing. Helps to stabilize the tube so that you can show your performance skill better. Its good for beginners to lay a solid foundation. Easy to use and convenient Thickness: 0.5mm Color: Black Material: Food Grade Silicone Application: Alto Tenor Saxophone, Bb Clarinet(Rubber) Package Weight : 0.35 Ounces Package Include: 8 x Mouthpiece Cushions Note: Please allow 1-3 mm error/1-3g weight error and actual product color may vary due to lighting conditions.