Description: There is no doubt silent wrench with L-shape design and wooden handle for ease and comfort when working. Silencer is made of durable rubber to ensure long-lasting use. Tuning bars are used to mute the external strings and can be tuned two octaves at a time. By using these tools, you can do your own piano repair work and learn some new abilities in the process, and save time too. This kit is an essential kit for piano players performing piano tuning work. By making with metal, wood, plastic and felt materials, this tool set will be solid and wear-resistant to use. This tool set including different tools and sizes for you to choose. It is suitable for apprentices, students, teachers, trainers, professional piano tuners or anyone who wants to learn piano tuning. Item Name: Piano Tuning Kits Material: Plastic,Metal,Wood,Felt Features: Solid, Rust-Proof, Compact Size Details: Sound Stop Rod: 20.5cm/8.07" (Approx.) Sound Stop Block: 10cm x 1.3cm x 1cm/3.94" x 0.51" x (Approx.) Sound Stop Tape: 106cm x 2.5cm x 0.5cm/41.73" x 0.98" x (Approx.) Sound Stop Tape Thickness: 0.6cm x 0.6cm/0.24" x 0.24" (Approx.) Tuning Fork: 12cm/4.72" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Wrench 2 x Sound Stop Rods 4 x Sound Stop Blocks 1 x Sound Stop Tape 1 x Tuning Fork