Item Type: Saxophone Mouthpiece CapMaterial: Plastic, MetalProduct Size: Approx. 5.9 x 2.8 x 2.8cm / 2.3 x 1.1 x 1.1in 1MAIN FUNCTION: Saxophone mouthpiece cap and clip kit can help create a full, centered tone and sound, which is a good accessory. 2PLASTIC CAP: The saxophone mouthpiece cap is made of excellent plastic, lightweight and durable, corrosion and scratch resistant. 3EASY ADJUSTMENT: The saxophone nozzle clip is double screw design, easy to adjust the diameter, facilitate installation and disassembly. 4METAL CLIP: The saxophone mouthpiece clip is made of metal, which has a glossy appearance without burrs, making it safe to use. 5REPLACEMENT PART: This accessory is designed specifically for alto saxophone mouthpiece, which can directly replace old or damaged ones.