Product material: stainless steel, wood Color: Multicolor Quantity: 8 pieces Package content: 1*wrench, 1*tuning bar, 6*mute 1.Piano Tuning Wrench: L-shaped design, made of hard stainless steel and wooden handle, durable wear resistance, easy to use and portable to carry with you. 2.Temperament Strip: Temperament Strip made of felt material, applied to mute two octaves at the same time by pressing between the string groups with a screwdriver or flat hammer bar, this is the most effective way to tune a temperament, saving you a lot of time. 3.Rubber Mute Kit: 2 rubber mutes with handles and 4 rubber mutes, made of durable and natural rubber and properly tapered, help you mute the section easier. 4.Multi-purpose: Ideal piano tuning kit for apprentices, students, teachers, coaches, professional piano tuners or anyone who wants to learn piano tuning. 5.Gifts for those who like musicIf your friend or family member is a pianist, he or she needs this set of tools to repair his or her piano.This set of tuning tools is a meaningful gift for your family, teacher, daughter, son or relatives on Christmas, housewarming, Thanksgiving or birthday.