Features: brand new and high quality Optimum ligature and cap set are made of high-quality metal & plastic materials, practical and durable. This product applies to alto sax metal flute head. Comes with a-pretty sound, designed for alto saxophone with mouthpiece. The ligature can help to hold the reed to the mouthpiece, helping to make the sound a-lot better and the tone more even. The plastic cap help to prevent chipping and breaking of the sax mouthpiece. Specifications: Material: Metal, Plastic Size: approx 5.9x2.8x2.8cm/2.32x1.10x1.10 inches Note: Please allow 1-2cm errors due to manual measurement. Due to the-difference betweeen different monitors,the pic-may not reflect the actual color of the item. Package includes: 1 Set Optimum Ligature and Cap