3pcs Piano Tuning Mute Wool Felt Wedge Mute Block Piano Tuning Maintenance Tool Piano Repair Parts Accessories Piano Mute Tool Wool Felt Wedge Mute

Suitable for piano trainers, piano teachers, piano learners and piano enthusiasts who need to train their own Toughness and durability Ideal for piano repair replacement parts Made of felt material, moderate softness and hardness, does not harm the strings and has excellent soundproofing effect By tapping into the gap that requires a stop-string to use, it prevents other strings from coming out and losing tuning Set of 3 sizes (large and small) to fit the training needs of piano trainers