Features: Effectively eliminate wolf tones and reduce unwanted buzzing with this brass cello wolf tone eliminators, delivering purer, cleaner sound quality for your instrument. Crafted from brass for enhanced acoustics and longevity, featuring a unique s shaped design with grooves for secure yet not damaging grip on the strings. Essential for cellists of all levels, from students to professionals, seeking to improve their instrument's tone claritys and performances. Perfect for practice, rehearsals, and live performances, ensuring stable, uninterrupted playing wherever your music takes you. Its compact, smooth shape allows for easy installation and removal, providing stable performances without affecting playability or comfort during use. Specifications: Component: Brass 05G Size: Approx. 0.55x0.35inch(14x9mm) Suitable for: 1/4, 1/8, 1/10 cello, 1/2cello with light sound 7G Size: Approx. 0.55x0.31inch(14x8mm) Suitable for: 1/2cello with a heavy wolf tone, 3/4 cello with a light wolf tone 9G Size: Approx. 0.71x0.35inch(18x9mm) Suitable for: 3/4 cello with a heavier tone, 4/4 cello with a lighter tone 11G Size: Approx. 0.87x0.35inch(22x9mm) Suitable for: 4/4 cello Package Includes: 1x Cello Wolf Instruments note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.