Description The music instrument bell cover is made of premium material, providing moderate cushioning. Reusable and easy to clean. Convenient to install. Reduce the sound when practicing your instrument in your house. Prevent it from getting dirty when you don't use it. Features -Material:Lycra polyester cotton -Size 2XL: About18.00X18.00X0.30cm/7.07X7.07X0.12inch (It is recommended to use instruments with a diameter of about 19-23cm.) -Size 3XL: About20.00X20.00X0.30cm/7.86X7.86X0.12inch (It is recommended to use instruments with a diameter of about 24-27cm.) -Size 4XL: About25.00X25.00X0.30cm/9.82X9.82X0.12inch (It is recommended to use instruments with a diameter of about 28-34cm.) -The protective cover is made of high-quality material, flexible, durable and practical. -The protective cover of this special material provides you with great convenience. -Easy to install on the trombone. It can be worn directly and can be easily taken off with a light pull. -Provide a safe and healthy environment for the audience and yourself. -Very suitable for trombone. Perfect to practice at home or to perform. Packing list: 1 x Trombone Horn Cover