Compared to traditional copper mouthpieces, the advantages are: 1. More environmentally friendly: Made from food grade engineering plastics, without surface treatment such as electroplating or spraying; 2. More beautiful appearance: multiple semi transparent colors, patented appearance structure design; 3. Transparent design ensures no defects inside the product; 4. Easy to produce sound, with a more beautiful tone quality; 5. Very light weight (15 grams), resistant to falling without deformation or cracking; 6. Especially suitable for people with metal allergies.