This bass thumb rest. It is made of solid materials. It is practical and durable. It can use for a long time without being easily . It is an excellent bass thumb rest that can bring you convenience, allowing you to have a more comfortable experience. Features -Color:Black -Material:Plastic -Size:6.50X1.30X1.00cm/2.55X0.51X0.39in - The sleek design of the thumb rest complements various bass styles, making it a versatile accessory for any bass player. - A very professional bass performance rest, suitable for personal and professional use. - If your friend is a bass learner or lover, then this rest will be a good gift. - The bass rest helps to maintain the correct position, suit for most clarinets. - Fine craftsmanship ensures the and good stability, the support is reliable and convenient. Package list: 4 x thumb rests 8 x screws