Features: Complete piano tuning tools, no need to hire a professional tuner to tune, saving money, convenient and portable, help you tune in time. The sound block is a soft sponge, which will not damage the sound quality of the piano. This is a great tool for beginners or for those who occasionally need trimming or tuning. Nine professional tuning tools can help you better adjust the sound quality and temperament, and bring people a perfect listening experience. The piano wrench is made of stainless steel, sturdy and durable, with wooden handles, and good hand feeling. The silence- band is a commonly used silence tool when adjusting the equal temperament of the reference group. Package Includes: 1x Wrench 2x Silencer- Bars 4x Silencer- Blocks 1x Soundstop 1x Tuning Fork Specifications: Material:Metal+Rubber+Wool Felt Size:As Picture Shown note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.