◾️Product Specification B♭ Cornet based on the traditional Shepherd's Crook ◾️Bell size: Approximately 12cm ◾️All-plastic valve system ◾️Durable ABS construction ◾️Adjustable main tuning slide ◾️Weight: Approximately 520g ◾️Mouthpieces: 2B and 4B included This is the world's first B♭ cornet made entirely of plastic, based on the traditional Shepherd's Crook design. It weighs about half as much as a conventional metal cornet, making it suitable for children to play. Furthermore, it employs patented antibacterial technology, ensuring it's safe for children to use. I bought this for my child, but they weren't very interested and only used it about 10 times.