These piano wedge mutes are manufactured with material for durable and long-term use. They are designed for more easily muting the treble section. The supple design makes them more convenient to use. They are helpful tools for piano tuning repairing. Features -Color:Blue -Material:Silicone - Size: 10.50X1.30X0.90cm/4.13X0.51X0.35in -Note:There are color differences among different batches -Using felt materials, it is durable, wear-resistant, support your long-term use. -The design is professional and practical, the appearance is simple, and it is easy to install and use. -Flexible and durable, the piano will not be during tuning process, providing you with more convenience -The tender silicone material protects your instrument from scratches and wear, the perfect substitute for piano wedge mute -The workmanship of this product is perfect, and to provide you a good user experience Package list: 4 pcs x 4 × Piano Tuning Wedge Mutes