1 Set Delicate Piano Tuning Tool Universal Convenient Mini Piano Tuning Key Hammer Fork Tool Handle Set Specifications:The tuning bar is used to mute the outer strings, and can be tuned two octaves at a time. The muffler is made of durable rubber to ensure long-lasting use. Silent key with wooden handle and L-shape for convenience and convenience during operation. What this kit can offer is a must-have kit for pianists performing piano tuning work. Simply with the help of these tools, you can do your own piano repair work and learn new skills in the process and also save time. Thanks to the use of metal, wood, plastic and felt materials, this tool set will be robust and resistant to wear and tear. This toolkit comes with a variety of tools and sizes to choose from. It is suitable for apprentices, students, teachers, trainers, professional piano tuners or anyone who wants to learn piano tuning. Item Name: Piano Tuning KitsMaterial: FeltFeatures: Solid, Rust-proof, CompactSize Details:Sound Insulator: 20.5cm/8.07" (Approx.) Block Sound Insulator: 10cm x 1.3cm x 1cm/3.94" x 0.51" x (Approx.) Sound Insulator Tape: 106cm x 2.5cm x 0.5cm/41.73" x 0.98" x (Approx.) Sound Insulator Tape Thickness: 0.6cm x 0.6cm/0.24" x 0.24" (Approx.) Tuning Fork: 12cm / 4.72" (Approx.) Notes:Due to the