Rotating wheel design allows for easy reference of key relationships, enhancing the learning experience for musicians. Aids in understanding chord progressions and key signatures, making it an essential tool for songwriting and composition. Suitable for both beginners and advanced musicians, providing valuable regardless of skill level. Includes a stand for stability, ensuring ease of use during practice or performance. Made from aluminum alloy, ensuring and reliability for all musicians. This innovative tool is designed to assist musicians in mastering the complexities of music . With its rotating wheel design, users can easily reference key relationships, making it a perfect companion for songwriting and composition. Whether you're a beginner or an advanced musician, this tool enhance your understanding of chord progressions and key signatures. The included stand provides stability, allowing for comfortable use during practice or performances. Crafted from aluminum alloy, this product is built to last, making it a valuable addition to any musician's toolkit. Color: Black & White Material: Aluminum Alloy Package Contents: 1*Circle of Fifths Music Disk+1* bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.