Features: This blowing aid allows for easily blowing, making it easier for beginners to control their breath and produce desired sounds. It helps beginners quickly learn the basic techniques of playing the flute. Made of light weight PVC, ensures long terms use and provides a comfortable and safe playing experience for beginners. It allows beginners to explore different musical possibilities and create beautiful melodies. This blowing aid is compact and to carry, making it suitable for both practice and learning. Specifications: Component: ABS Color: Cream Color/Clear Type: 2/1/3/4 1 Size: about 21x40mm/0.83x1.57inch 2 Size: about 24x40mm/0.95x1.57inch 3 Size: about 26x42mm/1.02x1.65inch 4 Size: about 27x43mm/1.06x1.69inch Package Includes: 1Pc Flute Blowing Mouth note: Please allow 1-2cm errors due to manual measurement, make sure that you not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color of the item.