Feature:1. This highquality hammer fits most pianos and is specially designed to fit the pins of pianos without damaging the pins.2. The piano tuning tool has a sturdy handle to help you maintain absolute control when turning. Stability is essential.3. The starshaped tip of this piano tuning tool can be installed at multiple angles and provides additional flexibility.4. This set of piano tuning tools can adjust everything you need, and the temperament bar is used to mute all external strings in one section at a time.5. Highquality mute clamps and rubber mute pads with handles make it very easy to operate on the correct part.Specification:Item Type: Piano Tuner KitMaterial: Metal + Rubber + WoodSuitable For: Grand PianoAdjustable piano tuning hammerThe hammer is octagonal.Package List:1 x Piano Tuning Hammer2 x Rubber Wedge Mute2 x Rubber Mute1 x Tape