Features 1、The piano tuning kit is complete, including tuning hammers, rubber mute rods, silencers and green felt kits, etc. 2、L‑shaped piano tone wrench is made of hard stainless steel and wooden handle, durable and wear‑resistant, easy to use and carry around. 3、By pushing between the strings with a screwdriver or a flat hammer handle, you can mute two octaves at a time, saving you a lot of time. 4、The mute rod and the silence block are made of durable natural rubber, and have appropriate taper, which is easy to use. 5、These tuning tools are very practical and are very good piano tuning accessories, very suitable for professional pianists or amateurs. Specification Item Type: Piano Tuner Tool Kit Material: Metal + rubber + wool felt Tone Wrench: Approx. 15 x 2.2cm / 5.9 x 0.9in Silence Strip: Approx. 110 x 0.6cm / 43.3 x 0.2in Silence Block: Approx. 10.3 x 1.3 x 1cm / 4.1 x 0.5 x 0.4in Mute Stick: Approx. 19 x 1.1 x 1cm / 7.5 x 0.4 x 0.4in Package List 90 x Green Felt 1 x Tuning Wrench 2 x Mute Stick 4 x Silence Block 1 x Silence Strip