Item Type: Piano Tuning Set_x000D_ Name: Piano Tuning Tool_x000D_ Material: Metal, rubber, wool felt_x000D_ Tuning Fork: 440Hz_x000D_ Used to repair pianos 1Tools with standard structure with sophisticated craft. It is good for both beginners and professionals. 2High?quality wrench hammer is suitable for most pianos. Other accessories are of good quality and versatile 3The piano wrench is made of stainless steel, sturdy and durable, with wooden handles, and feels good. 4Durable, not easy to damage, do not need frequent replacement, very convenient. 5Suitable for piano tuner, individuals with piano, piano tuning enthusiasts, beginners, students, piano teachers and other people who need to use tools to adjust the piano. 1 x Wrench 2 x Rubber Mute 4 x Rubber Wedge Mute 1 x Temperament Strip 1 x Tuning Fork