The piano tuning tools kit includes tunning hammer wrench, temperament strip, 2 rubber mutes with handle and 4 rubber mutes. It is practical for finish the piano fixing job.Features:The piano tuning wrench is L-shaped design, made from hard stainless steel and wood handle, durable and abrasion-resistance.Extended temperament strip is made of felt materials, applied to mute two octaves at once by pushing between the groups of strings with a screwdriver or flattened hammer shank.2 rubber mutes with handle and 4 rubber mutes, made of durable and natural rubber and correctly tapered, helps you to mute the section more simply.Perfect piano tuning kit for apprentices, students, teachers, trainers, professional piano tuners, or anyone who wants to learn piano tuning.With the tools, you are able to finish the piano fixing job by yourself, and learn some kind of new ability during this process.Specifications:Material: Stainless steel and RubberItem Size:Hammer wrench of wooden handle: Length 160mm or 6.3inMutes with handle: Length 230mm or 9.05inRubber mutes: 100 x 13.0mm or 3.94 x 0.51inTemperament strip: 1000mm or 39.37inPackage Weight: 173g or 6.1ouncesPackage Size: 200 x 150 x 50mm or 7.87 x 5.91 x 1.97inNote:The wrench of this practical starter kit is a little short than professional wrench, but the wrench in this kit will not affect the result of use, just need more strength when used.Packing List:1 x Tunning Hammer Wrench1 x Temperament Strip2 x Mutes with Handles4 x Mutes1 x Storage Bag