Product Description Material: stainless steel, wood Color: Multicolor Quantity: 8 pieces Package content: 1wrench, 1tuning bar, 6mute 1 Piano Tuning Wrench: L-shaped design, made from hard stainless steel wood hle, durable andabrasion-resistance , easy to use portable to carry with you 2 Temperament Strip: Temperament Strip 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, this is the most efficient way of setting a temperament in, save you a lot of time 3 Rubber Mutes Kit : 2 rubber mutes with hle 4 rubber mutes, made of durable natural rubber correctly tapered, helps you to mute the section more simply 4 Multi-purpose: Ideal piano tuning kit for apprentices, students, teachers, trainers, professional piano tuners, or anyone who wants to learn piano tuning 5 Gifts for those who like musiciansIf your friend or family member is a pianist, he or she needs this set of tools to repair his piano This set of tuning tools is a meaningful gift for your family, teacher, daughter, son or relatives on Christmas, moving, Thanksgiving or birthday